| IAP | immunosuppressive acidic protein; inosinic acid pyrophosphorylase; Institute of Animal Physiology; i... |
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| IFA | idiopathic fibrosing alveolitis; immunofluorescence assay; immunofluorescent antibody; incomplete Fr... |
| IHS | idiopathic hypereosinophilic syndrome; inactivated horse serum; Indian Health Service; integrated he... |
| IRC | inspiratory reserve capacity; instantaneous resonance curve; International Red Cross; International ... |
| ISC | immunoglobulin-secreting cells; insoluble collagen; International Society of Cardiology; Internation... |
| ICD9CM | International Classification of Diseases 9th Revision Clinical Modification |
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| ICD-9 CM | International Classification of Diseases, Ninth Revision, Clinical Modification |
| ICD-9 | International Classification of Disease, ninth revision |
| ICHPPC | International Classification of Health Problems in Primary Care |
| ICIDH | International Classification of Impairments Disabilities and Handicaps |
| group processes | The procedures through which a group approaches, attacks, and solves a common problem. (12 Dec 1998) |
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| group purchasing | A shared service which combines the purchasing power of individual organizations or facilities in order to obtain lower prices for equipment and supplies. (12 Dec 1998) |
| group reaction | A reaction with an agglutinin or other antibody that is common (though usually in varying concentrations) to an entire group of related bacteria, e.g., the coli group. (05 Mar 2000) |
| group-specific protease | <enzyme> A serine protease, obtained from rat small intestine, which preferentially inactivates the apo forms of certain pyridoxal phosphate requiring enzymes Registry number: EC 3.4.21.- (26 Jun 1999) |
| group structure | The informal or formal organization of a group of people based on a network of personal relationships which is influenced by the size and composition, etc., of the group. (12 Dec 1998) |
| group test | In psychology, a test designed to be administered to more than one individual at a time; e.g., scholastic achievement test, medical college admissions test. (05 Mar 2000) |
| group transfer | The transfer of a functional moiety from one molecule to another. (05 Mar 2000) |
| group translocation | A process of actively importing compounds into the bacterial cell. The compound diffuses into the cell passively, and is immediately modified (for example by phosphorylation) so that it cannot diffuse back out. (09 Oct 1997) |
| group velocity | <radiobiology> This is derived from the dispersion relation as Vgroup = dw/dk, the group velocity is the rate at which modulations or information within a wave travel through a given medium. (09 Oct 1997) |
| methyl group | A -CH3 group on a larger molecule. A carbon which is single-bonded to three hydrogens, and has one free bond to the rest of the molecule. (09 Oct 1997) |
| middle group of mesenteric lymph nodes | The mesenteric lymph nodes located along the intestinal (jejunal and ileal) branches of the superior mesenteric artery. Synonym: nodi lymphatici superiores centrales, central mesenteric lymph nodes. (05 Mar 2000) |
| phosphate group | <chemistry> A phosphate group on a larger molecule, where the phosphorus is single bonded to each of the four oxygens, and the other bond of one of the oxygens is attached to the rest of the molecule. This means that the entire group has a net negative charge of -3 (from the free second bonds on the oxygen atoms which are only bonded to the phosphorus atom). Often hydrogen atoms will be attached to the oxygens and sometimes double bonds between the phosphorus and an oxygen are present. (31 Dec 1997) |
| clinical cooperative group | A group of medical institutions cooperating to perform clinical research. (16 Dec 1997) |
| MN blood group antigens | <haematology, immunology> A pair of blood group antigens governed by genes that segregate independently of the ABO locus. The alleles are codominant and there are three types MM, NN and MN. Glycophorin has M or N activity and this is associated with oligosaccharides attached to the amino terminal portion of the molecule. M type glycophorin differs from N type in amino acid residues 1 and 5, although the antigenic determinants are associated with the carbohydrate side chains. (18 Nov 1997) |
| MNSs blood group | See Blood Groups appendix. (05 Mar 2000) |