| NA | Avogadro constant or number; nalidixic acid; Narcotics Anonymous; network administrator; neuraminida... |
|---|---|
| NAA | N-acetyl aspartate; naphthaleneacetic acid; neutral amino acid; neutron activation analysis; neutrop... |
| TCA | T-cell A locus; terminal cancer; tetracyclic antidepressant; total cholic acid; total circulating al... |
| TPA | tannic acid, polyphosphomolybdic acid, and amino acid; 12-0-tetradecanoyl-phorbol-13-acetate; third-... |
| UA | absorption unsharpness; ultra-audible; ultrasonic arteriography; umbilical artery; unauthorized abse... |
| acid dextrin | The product of acid and heat treatment of dextrin. (05 Mar 2000) |
|---|---|
| acid dissociation constant | <chemistry> This is the equilibrium constant for the breaking apart of a weak acid into its hydrogen and conjugate base in a water solution. (09 Oct 1997) |
| acid dyspepsia | Dyspepsia associated with excess gastric acidity. (05 Mar 2000) |
| acid etch | <dentistry> A procedure where a weak acid smeared on your teeth to ready your teeth for brackets. The acid etch helps your brackets stay on better. (08 Jan 1998) |
| acid etch cemented splint | A splint of heavy wire which is cemented to the labial surfaces of teeth with any of the acid etch cement techniques; used to stabilise traumatically displaced or periodontally diseased teeth. (05 Mar 2000) |
| acid-etched restoration | The restoration of tooth structure with a resin after the surface of the tooth has been treated with an acid solution that etches the tooth surface, thereby increasing retention of the restoration. (05 Mar 2000) |
| acid etching, dental | Pretreatment of tooth surfaces with etching agents, usually phosphoric acid, to increase the adhesion of various resin systems. (12 Dec 1998) |
| acid fuchsin | A mixture of the sodium salts bi-and trisulfonic acids of rosanilin and pararosanilin; used as an indicator dye and for staining of cytoplasm and collagen. Synonym: rubin S, rubine. (05 Mar 2000) |
| acid gland | One of the gastric gland's secreting the hydrochloric acid of the gastric juice. Synonym: oxyntic gland. (05 Mar 2000) |
| acid hydrolysis | A chemical process in which acid is used to convert cellulose or starch to sugar. (05 Dec 1998) |
| acidic amino acid | An Amino acid with a second acid moiety, e.g., glutamic acid, aspartic acid, cysteic acid. (05 Mar 2000) |
| acid indigestion | Indigestion resulting from hyperchlorhydria; often used by the laity as a synonym for pyrosis. (05 Mar 2000) |
| acid intoxication | Poisoning by acid products (beta-oxybutyric acid, diacetic acid, or acetone) formed as a result of faulty metabolism (e.g., uncontrolled diabetes mellitus) or by acids introduced from without; marked by epigastric pain, headache, loss of appetite, constipation, restlessness, and an odour of acetone in the breath, followed by air hunger, coma, and collapse. (05 Mar 2000) |
| acid loading test | <nephrology> This is a test used in the diagnosis of renal tubular acidosis. The patient takes ammonium chloride capsules for 3 days to acidify the blood (lower blood pH). A sample of the urine and the blood is then collected and the results are interpreted. (27 Sep 1997) |
| acid maltase | A hydrolase removing terminal alpha-1,4-linked d-glucose residues from nonreducing ends of chains, with release of beta-d-glucose. Synonym: acid maltase, amyloglucosidase, gamma-amylase, glucoamylase. (05 Mar 2000) |