| ASG | advanced cell group; American Society for Genetics; Army Surgeon General; aspermiogenesis |
|---|---|
| AVG | ambulatory visit group |
| AZO | [indicates presence of the group -N:N-] |
| BCCG | British Cooperative Clinical Group |
| beta [Greek letter beta] | an anomer of a carbohydrate; buffer capacity; carbon separated from a carboxyl by one other carbon i... |
| blood group incompatibility | A mismatch between donor and recipient blood. Antibodies present in the recipient's serum are directed against antigens in the donor product. Such a mismatch may result in a transfusion reaction in which, for example, donor blood is haemolyzed. (12 Dec 1998) |
|---|---|
| blood group substance | Blood group-specific substances A and B, solution of complexes of polysaccharides and amino acids that reduces the titre of anti-A and anti-B isoagglutinins in serum from group O persons; used to render group O blood reasonably safe for transfusion into persons of group A, B, or AB, but does not affect any incompatibility that results from various other factors, such as Rh. (05 Mar 2000) |
| calcium group | The metals of the alkaline earths: beryllium, magnesium, calcium, strontium, barium, and radium. (05 Mar 2000) |
| carbonyl group | A group in which an oxygen atom is double-bonded to a carbon atom: O=C. The carbon atom then has two additional bonds to attach to the rest of the molecule. Organic molecules containing a carbonyl group are a very important, major group of compounds studied in the field of organic chemistry. (09 Oct 1997) |
| carboxyl group | -COOH group. One of the oxygens is double-bonded to the carbon atom, making it a carbonyl group, and the other oxygen is single bonded to the carbon on one side, and single bonded to the hydrogen on the other. The remaining bond on the carbon atom is attached to the rest of the molecule. Organic molecules containing carboxyl groups are an important, major group of compounds studied in the field of organic chemistry. (09 Oct 1997) |
| vanadium group | Those elements resembling vanadium in chemical and metallurgical properties; included with vanadium are niobium and tantalum. (05 Mar 2000) |
| marathon group psychotherapy | A type of group psychotherapy characterised by uninterrupted sessions for periods of hours or days, with minimal interruptions for food and rest. (05 Mar 2000) |
| genus-group | <zoology> The taxonomic categories genus and subgenus. (09 Jan 1998) |
| CDE blood group | See Rh blood group, Blood Groups appendix. (05 Mar 2000) |
| p blood-group system | A blood group related to the abo, lewis and I systems. at least five different erythrocyte antigens are possible, some very rare, others almost universal. Multiple alleles are involved in this blood group. (12 Dec 1998) |
| pectoral group of axillary lymph nodes | Lymph nodes located along the lateral thoracic vein; they receive the drainage of the pectoral region, including most of the drainage of the breast. Synonym: nodi lymphatici axillaris pectorales, anterior group of axillary lymph nodes. (05 Mar 2000) |
| central group of axillary lymph nodes | Nodes located around the midportion of the axillary vein; they receive afferent vessels from the lateral (brachial), pectoral, and subscapular groups of axillary nodes and send efferent vessels to the apical group of axillary node's. (05 Mar 2000) |
| peer group | Group composed of associates of same species, approximately the same age, and usually of similar rank or social status. (12 Dec 1998) |
| glycosyl group | <biochemistry> A radical chemical group on a larger molecule, derived from a sugar or starch molecule, which is attached to the rest of the larger molecule by way of a glycosidic bond. (09 Oct 1997) |
| characterizing group | A group of atoms in a molecule that distinguishes the class of substances in which it occurs from all other classes; thus carbonyl (CO) is the characterizing group of ketones; COOH, of organic acids, etc. (05 Mar 2000) |