| ISV | Institut des Sciences du Végétal | In French | → Research institutes → Botany |
| ITAV | Institut des Technologies Avancées des Sciences du Vivant | In French | → Biotechnology → Medicine |
| ITQB | Instituto de Tecnologia Química e Biológica | In Portuguese | → Research institutes → Chemical technology |
| ITR | Inverted Terminal Repeat | In English | → Genetics |
| JAK | Janus Kinase | In English | → Enzymes |
| JBB | Journal of Bioenergetics and Biomembranes | In English | → Serial publications, periodicals → Biochemistry, biophysics |
| JBBC | Journal of Biophysical and Biochemical Cytology | In English | → Serial publications, periodicals → Cytology |
| JBBM | Journal of Biochemical and Biophysical Methods | In English | → Serial publications, periodicals → Biochemistry, biophysics |
| JBC | Journal of Biological Chemistry | In English | → Serial publications, periodicals → Biochemistry, biophysics |
| JBiBi | Journal de Biophysique et de Biomécanique | In French | → Serial publications, periodicals → Biochemistry, biophysics |
| JBiom | Journal of Biomechanics | In English | → Serial publications, periodicals → Biochemistry, biophysics |
| JBMN | Journal de Biophysique et Médecine Nucléaire | In French | → Serial publications, periodicals → Biochemistry, biophysics → Medicine |
| JBO | Journal of Biomedical Optics | In English | → Serial publications, periodicals → Optics → Medicine |
| JBP | Journal of Biological Physics | In English | → Serial publications, periodicals → Biochemistry, biophysics |
| JCoB | Journal of Computational Biology | In English | → Computer science → Serial publications, periodicals |
| JCoN | Journal of Computational Neuroscience | In English | → Computer science → Serial publications, periodicals → Neurology |
| JCPPC | Journal de Chimie Physique et de Physico-Chimie Biologique | In French | → Serial publications, periodicals → Physical chemistry → Biochemistry, biophysics |
| JGI | Joint Genome Institute | In English | → Genetics |
| JMBio | Journal of Molecular Biology | In English | → Serial publications, periodicals → Biochemistry, biophysics |
| JMNB | Journal de Médecine Nucléaire et Biophysique | In French | → Serial publications, periodicals → Biochemistry, biophysics → Medicine |
| JNeur | Journal of Neurochemistry | In English | → Serial publications, periodicals → Biochemistry, biophysics → Neurology |
| JPrCh | Journal of Protein Chemistry | In English | → Serial publications, periodicals → Biochemistry, biophysics |
| JRAI | Journal of the Royal Anthropological Institute of Great Britain and Ireland | In English | → Serial publications, periodicals → Anthropology |
| JSMB | Japanese Society for Mathematical Biology | In English | → Organizations and associations → Mathematics |
| JSRV | Jaagsiekte Sheep Retrovirus | In English | → Virology |
| JTBio | Journal of Theoretical Biology | In English | → Serial publications, periodicals |
| K | Lisina = K | Lysine | In English = K | ليسين | In Arabic = K | লাইসিন | In Bengali = K | Lisina | In Catalan = K | Lysin | In Czech = K | Lysin | In German = K | Lisina | In Spanish = K | Lizino | In Laotian = K | Lysine | In French = K | 리신 | In Korean = K | Lizin | In Croatian = K | Lisin | In Indonesian = K | Lisina | In Italian = K | ליזין | In Hebrew = K | Lizīns | In Latvian = K | Lysin | In Letzeburgesh = K | Lizinas | In Lithuanian = K | Lizin | In Hungarian = K | Lysine | In Dutch = K | リシン | In Japanese = K | Lizyna | In Polish = K | Лизин | In Russian = K | Lysiini | In Finnish = K | Lizin | In Turkish = K | Лізин | In Ukrainian = K | 赖氨酸 | In Chinese |
In Portuguese | → Biochemistry, biophysics |
| K | Lysin = (look above) |
In Letzeburgesh | → Biochemistry, biophysics |
| K | Lizīns = (look above) |
In Latvian | → Biochemistry, biophysics |
| K | Lizin = (look above) |
In Hungarian | → Biochemistry, biophysics |
| K | Lysine = (look above) |
In Dutch | → Biochemistry, biophysics |
| K | リシン = (look above) |
In Japanese | → Biochemistry, biophysics |
| K | Lizyna = (look above) |
In Polish | → Biochemistry, biophysics |
| K | 赖氨酸 = (look above) |
In Chinese | → Biochemistry, biophysics |
| K | Лізин = (look above) |
In Ukrainian | → Biochemistry, biophysics |
| K | Lizin = (look above) |
In Turkish | → Biochemistry, biophysics |
| K | Lysiini = (look above) |
In Finnish | → Biochemistry, biophysics |
| K | Лизин = (look above) |
In Russian | → Biochemistry, biophysics |
| K | ליזין = (look above) |
In Hebrew | → Biochemistry, biophysics |
| K | Lisina = (look above) |
In Italian | → Biochemistry, biophysics |
| K | Lisin = (look above) |
In Indonesian | → Biochemistry, biophysics |
| K | Lizinas = (look above) |
In Lithuanian | → Biochemistry, biophysics |
| K | Lysine = (look above) |
In English | → Biochemistry, biophysics |
| K | ليسين = (look above) |
In Arabic | → Biochemistry, biophysics |
| K | লাইসিন = (look above) |
In Bengali | → Biochemistry, biophysics |
| K | Lysin = (look above) |
In Czech | → Biochemistry, biophysics |
| K | Lysin = (look above) |
In German | → Biochemistry, biophysics |
| K | Lisina = (look above) |
In Spanish | → Biochemistry, biophysics |
| K | Lizino = (look above) |
In Laotian | → Biochemistry, biophysics |
| K | Lysine = (look above) |
In French | → Biochemistry, biophysics |
| K | 리신 = (look above) |
In Korean | → Biochemistry, biophysics |
| K | Lizin = (look above) |
In Croatian | → Biochemistry, biophysics |
| K | Lisina = (look above) |
In Catalan | → Biochemistry, biophysics |
| KAR | Kainate Receptor | In English | → Biochemistry, biophysics |
| KHPM | Kininogène de Haut Poids Moléculaire | In French | → Biochemistry, biophysics |
| KOMP | Knockout Mouse Project | In English | |
| L | Leucin = L | Leucine | In English = L | Leucina | In Catalan = L | Leucin | In Danish = L | Leucin | In German = L | Leucina | In Spanish = L | Leŭcino | In Esperanto = L | Leucine | In French = L | 류신 | In Korean = L | Leusin | In Indonesian = L | Leucina | In Italian = L | לאוצין | In Hebrew = L | Leicīns | In Latvian = L | Leucin | In Letzeburgesh = L | Leucinas | In Lithuanian = L | Leucine | In Dutch = L | ロイシン | In Japanese = L | Leucin | In Norwegian = L | Leucyna | In Polish = L | Leucina | In Portuguese = L | Лейцин | In Russian = L | Leusiini | In Finnish = L | Leucin | In Swedish = L | Lösin | In Turkish = L | Лейцин | In Ukrainian = L | 亮氨酸 | In Chinese |
In Croatian | → Biochemistry, biophysics |
| L | Lösin = (look above) |
In Turkish | → Biochemistry, biophysics |
| L | Лейцин = (look above) |
In Ukrainian | → Biochemistry, biophysics |
| L | 亮氨酸 = (look above) |
In Chinese | → Biochemistry, biophysics |
| L | Leucine = (look above) |
In French | → Biochemistry, biophysics |
| L | Leŭcino = (look above) |
In Esperanto | → Biochemistry, biophysics |
| L | ロイシン = (look above) |
In Japanese | → Biochemistry, biophysics |
| L | Leucine = (look above) |
In English | → Biochemistry, biophysics |
| L | Leucina = (look above) |
In Spanish | → Biochemistry, biophysics |
| L | Leucin = (look above) |
In Danish | → Biochemistry, biophysics |
| L | Leucin = (look above) |
In German | → Biochemistry, biophysics |
| L | Leucina = (look above) |
In Catalan | → Biochemistry, biophysics |
| L | Leucin = (look above) |
In Swedish | → Biochemistry, biophysics |
| L | Leusiini = (look above) |
In Finnish | → Biochemistry, biophysics |
| L | Лейцин = (look above) |
In Russian | → Biochemistry, biophysics |
| L | 류신 = (look above) |
In Korean | → Biochemistry, biophysics |
| L | Leucina = (look above) |
In Italian | → Biochemistry, biophysics |
| L | לאוצין = (look above) |
In Hebrew | → Biochemistry, biophysics |
| L | Leicīns = (look above) |
In Latvian | → Biochemistry, biophysics |
| L | Leucin = (look above) |
In Letzeburgesh | → Biochemistry, biophysics |
| L | Leucinas = (look above) |
In Lithuanian | → Biochemistry, biophysics |
| L | Leucine = (look above) |
In Dutch | → Biochemistry, biophysics |
| L | Leucin = (look above) |
In Norwegian | → Biochemistry, biophysics |
| L | Leucyna = (look above) |
In Polish | → Biochemistry, biophysics |
| L | Leucina = (look above) |
In Portuguese | → Biochemistry, biophysics |
| L | Leusin = (look above) |
In Indonesian | → Biochemistry, biophysics |
| LAI | Latex Agglutination Assay | In English | → Biochemistry, biophysics |
| LCMV | Lymphocytic Choriomeningitis Virus | In English | → Virology |
| LDH | Lactate Dehydrogenase | In English | → Enzymes |
| LDL | Low Density Lipoprotein | In English | → Biochemistry, biophysics |
| LDL | Low-Density Lipoprotein | In English | → Biochemistry, biophysics |
| LDLR | Low-Density Lipoprotein Receptor | In English | → Biochemistry, biophysics |
| LEBM | Laboratoire Européen de Biologie Moléculaire | In French | → Research institutes → Biochemistry, biophysics |
| LEDSS | Laboratoire d'Études Dynamiques et Structurales de la Sélectivité | In French | → Research institutes → Chemistry → Biochemistry, biophysics |
| LH | Luteinizing Hormone | In English | → Hormones → Gynaecology |
| LINE | Long Interspersed Nuclear Element | In English | → Genetics |
| LISA | Life Science Austria | In English | → Medicine |
| LMC | Lipid Matrix Carrier | In English | → Biochemistry, biophysics |
| LMI | Laboratory of Molecular Imaging | In English | → Research institutes → Biochemistry, biophysics |
| LPA | Lysophosphatidic Acid | In English | → 5771 |
| LPS | Lipopolysaccharide | In English | → Biochemistry, biophysics |
| LPS | Lipopolysaccharide | In French | → Biochemistry, biophysics |
| LSD | Lysergic Acid Diethylamide | In English | → Biochemistry, biophysics |
| LSM | Life Science Module | In English | |
| LSPDF | Life Science Payload Development Facility | In English | → Spaceflight engineering, astronautics |
| LSRM | Life Science Research Module | In English | |
| LSSL | Life Sciences Space Laboratory | In English | → Research institutes → Spaceflight engineering, astronautics |
| LSSRC | Life Sciences Shuttle Research Centrifuge | In English | → Spaceflight engineering, astronautics |
| LTER | Long-Term Ecological Research | In English | → Ecology |
| LTP | Long-term potentiation | In English | |
| LTR | Long Terminal Repeat | In English | → Genetics |
| LUTEA | Land Use in Temperate East Asia | In English | → Ecology → Agricultural sciences |
| M | Méthionine = M | Methionine | In English = M | Metionina | In Catalan = M | Methionin | In German = M | Metionina | In Spanish = M | Metionino | In Esperanto = M | 메티오닌 | In Korean = M | Metionin | In Indonesian = M | Metionina | In Italian = M | Metionin | In Croatian = M | מתיונין | In Hebrew = M | Metionīns | In Latvian = M | Methionin | In Letzeburgesh = M | Metioninas | In Lithuanian = M | Methionine | In Dutch = M | メチオニン | In Japanese = M | Metionin | In Norwegian = M | Metionina | In Polish = M | Metionina | In Portuguese = M | Метионин | In Russian = M | Метионин | In Serbian = M | Metioniini | In Finnish = M | Metionin | In Swedish = M | Metiyonin | In Turkish = M | Метіонін | In Ukrainian = M | 蛋氨酸 | In Chinese |
In French | → Biochemistry, biophysics |
| M | Metionin = (look above) |
In Croatian | → Biochemistry, biophysics |
| M | 蛋氨酸 = (look above) |
In Chinese | → Biochemistry, biophysics |
| M | Metionin = (look above) |
In Norwegian | → Biochemistry, biophysics |
| M | Metionina = (look above) |
In Catalan | → Biochemistry, biophysics |
| M | Methionin = (look above) |
In German | → Biochemistry, biophysics |
| M | Metionina = (look above) |
In Spanish | → Biochemistry, biophysics |
| M | Metionino = (look above) |
In Esperanto | → Biochemistry, biophysics |
| M | Metionina = (look above) |
In Polish | → Biochemistry, biophysics |
| M | 메티오닌 = (look above) |
In Korean | → Biochemistry, biophysics |
| M | Metionin = (look above) |
In Indonesian | → Biochemistry, biophysics |
| M | Metionina = (look above) |
In Italian | → Biochemistry, biophysics |
| M | מתיונין = (look above) |
In Hebrew | → Biochemistry, biophysics |
| M | Metionīns = (look above) |
In Latvian | → Biochemistry, biophysics |
| M | Methionin = (look above) |
In Letzeburgesh | → Biochemistry, biophysics |
| M | Metioninas = (look above) |
In Lithuanian | → Biochemistry, biophysics |
| M | Methionine = (look above) |
In Dutch | → Biochemistry, biophysics |
| M | メチオニン = (look above) |
In Japanese | → Biochemistry, biophysics |
| M | Methionine = (look above) |
In English | → Biochemistry, biophysics |
| M | Metionina = (look above) |
In Portuguese | → Biochemistry, biophysics |
| M | Metiyonin = (look above) |
In Turkish | → Biochemistry, biophysics |
| M | Метіонін = (look above) |
In Ukrainian | → Biochemistry, biophysics |
| M | Metionin = (look above) |
In Swedish | → Biochemistry, biophysics |
| M | Metioniini = (look above) |
In Finnish | → Biochemistry, biophysics |
| M | Метионин = (look above) |
In Serbian | → Biochemistry, biophysics |
| M | Метионин = (look above) |
In Russian | → Biochemistry, biophysics |
| MAB | Monoclonal Antibody | In English | → Biochemistry, biophysics |
| MAP | Multiple Antigenic Peptide | In English | → Biochemistry, biophysics → Immunology and allergy |
| MAPC | Multipotent Adult Progenitor Cell | In English | → 5763 |
| MAPK | Mitogen-Activated Protein Kinase | In English | → Enzymes |
| MBB | Molecular Biology and Biophysics | In English | → Serial publications, periodicals → Biochemistry, biophysics |
| MBBB | Molecular Biology, Biochemistry and Biophysics | In English | → Serial publications, periodicals → Biochemistry, biophysics |
| MBP | Metal Binding Protein | In English | → Biochemistry, biophysics |
| MCBO | Molecular Cell Biology and Oncology Graduate Program | In English | → Education → Cytology → Oncology |
| MCG | Maatschappelijke Component van het Genomicsonderzoek | In Dutch | → Genetics → Biochemistry, biophysics |
| MCLV | Multi-Chamber Lipid Vesicle | In English | → Biochemistry, biophysics |
| MCME | Methods: A Companion to Methods in Enzymology | In English | → Serial publications, periodicals → Enzymes |
| MCP | Membrane Cofactor Protein | In French | → Biochemistry, biophysics |
| MCP | Monocyte Chemoattractant Protein | In English | → Biochemistry, biophysics → Immunology and allergy |
| MDCK | Madin–Darby Canine Kidney | In English | → Anatomy |
| MDCT | Multidetector Computed Tomography | In English | → 571 |
| MEF | Myocyte Enhancer Factor | In English | → Biochemistry, biophysics |
| MGC | Mammalian Gene Collection (http://mgc.nci.nih.gov) | In English | → Genetics → Mammals |
| MGM | Molecular Genetics and Metabolism | In English | → Serial publications, periodicals |
| MicEc | Microbial Ecology | In English | → Serial publications, periodicals → Ecology → Microbiology |
| MITE | Miniature Inverted-repeat Transposable Element | In English | → Genetics |
| MIV | Menslike Immuniteitsgebreksvirus = VIH | Virus de l'Immunodéficience Humaine | In French = HIV | Human Immunodeficiency Virus | In English = VIH | Virus d'Inmunodeficencia Humana | In Asturian = VIH | Vírus da imunodeficiência humana | In Portuguese = VIDH | Virus Immunitarii Defectus Humanae | In Latin = ŽIV | Žmogaus Imunodeficito Virusas | In Lithuanian = ХИВ | Хумане имунодефицијенције | In Serbian = HIV | Humani Imunodeficientni Virus | In Slovenian = ВИЧ | Вирус иммунодефицита человека | In Russian = GIB | Giza Immunoeskasiaren Birusa | In Basque |
In Afrikaans | → Virology → Immunology and allergy → Infectious diseases |
| MMTV | Mouse Mammary Tumor Virus | In English | → Virology → Oncology |
| MnSOD | Manganese Superoxyde Dismutase | In English | → Enzymes |
| MoBiMed | Molekulare Bildgebung in der Medizin | In German | → Medicine |
| MRJP | Major Royal Jelly Protein | In English | |
| mRKS | Mótandi ríbósakjarnasýru | In Icelandic | → Genetics → Biochemistry, biophysics |
| MSBM | Maîtrise de Sciences Biologiques et Médicales | In French | → Higher education, universities → Medicine |
| mTOR | Mammalian Target Of Rapamycin | In English | → Biochemistry, biophysics → Mammals |
| N | Asparagina = N | Asparagine | In English = N | Asparagin | In German = N | Asparagina | In Spanish = N | Asparagino | In Esperanto = N | Asparagine | In French = N | 아스파라긴 | In Japanese = N | Asparagin | In Indonesian = N | Asparagina | In Italian = N | אספרגין | In Hebrew = N | Asparagīns | In Latvian = N | Asparagin | In Letzeburgesh = N | Asparaginas | In Lithuanian = N | Asparagine | In Dutch = N | アスパラギン | In Japanese = N | Asparagina | In Polish = N | Asparagina | In Portuguese = N | Аспарагин | In Russian = N | Asparagín | In Slovak = N | Аспарагин | In Serbian = N | Asparagiini | In Finnish = N | Asparagin | In Swedish = N | Asparagin | In Turkish = N | Аспарагін | In Ukrainian = N | 天冬酰胺 | In Chinese |
In Catalan | → Biochemistry, biophysics |
| N | Asparagina = (look above) |
In Spanish | → Biochemistry, biophysics |
| N | Asparagin = (look above) |
In German | → Biochemistry, biophysics |
| N | Asparagina = (look above) |
In Italian | → Biochemistry, biophysics |
| N | Asparagino = (look above) |
In Esperanto | → Biochemistry, biophysics |
| N | Asparagine = (look above) |
In French | → Biochemistry, biophysics |
| N | 아스파라긴 = (look above) |
In Japanese | → Biochemistry, biophysics |
| N | Asparagin = (look above) |
In Indonesian | → Biochemistry, biophysics |
| N | Asparagine = (look above) |
In English | → Biochemistry, biophysics |
| N | אספרגין = (look above) |
In Hebrew | → Biochemistry, biophysics |
| N | Аспарагін = (look above) |
In Ukrainian | → Biochemistry, biophysics |
| N | Asparagin = (look above) |
In Turkish | → Biochemistry, biophysics |
| N | Asparagin = (look above) |
In Swedish | → Biochemistry, biophysics |
| N | Asparagiini = (look above) |
In Finnish | → Biochemistry, biophysics |
| N | Аспарагин = (look above) |
In Serbian | → Biochemistry, biophysics |
| N | 天冬酰胺 = (look above) |
In Chinese | → Biochemistry, biophysics |
| N | Asparagín = (look above) |
In Slovak | → Biochemistry, biophysics |
| N | Аспарагин = (look above) |
In Russian | → Biochemistry, biophysics |
| N | Asparagina = (look above) |
In Portuguese | → Biochemistry, biophysics |
| N | Asparagina = (look above) |
In Polish | → Biochemistry, biophysics |
| N | アスパラギン = (look above) |
In Japanese | → Biochemistry, biophysics |
| N | Asparaginas = (look above) |
In Lithuanian | → Biochemistry, biophysics |
| N | Asparagin = (look above) |
In Letzeburgesh | → Biochemistry, biophysics |
| N | Asparagīns = (look above) |
In Latvian | → Biochemistry, biophysics |
| N | Asparagine = (look above) |
In Dutch | → Biochemistry, biophysics |
| NABR | National Association for Biomedical Research (www.nabr.org) | In English | → Associations → Medicine |
| NABT | National Association of Biology Teachers (www.nabt.org) | In English | → Associations → Education |
| NAD | Nicotinamide Adenine Dinucleotide | In English | → Genetics → Biochemistry, biophysics |
| NANA | Acide N-acétylneuraminique = NeuAc | Acide N-acétylneuraminique | In French |
In French | → Biochemistry, biophysics |
| NAR | Nucleic Acids Research | In English | → Serial publications, periodicals → Biochemistry, biophysics |
| NARME | Natural Resources Management and Ecological Engineering | In English | → Environment, environmental sciences → Ecology |
| NatH | Natural History | In English | → Serial publications, periodicals |
| NBDL | Naval Bio-Dynamics Laboratory | In English | → Research institutes |
| NBN | (Asocio por la enkonduko de) Nova Biologia Nomenklaturo | In Esperanto | → Associations |
| NCAM | Neural Cell Adhesion Molecule | In English | → Biochemistry, biophysics |
| nCaR | Nicotinic Acetylcholine Receptor | In English | → Biochemistry, biophysics |
| NCIMB | National Collections of Industrial, Marine and Food Bacteria (www.ncimb.com) | In English | → Food technology |
| NCRR | National Center for Research Resources (www.ncrr.nih.gov) | In English | → Research institutes → Medicine |
|