| INQ | interior nasal quadrant |
|---|---|
| INV | inferior nasal vein |
| NAR | nasal airway resistance; National Association for Retarded [Children, Citizens]; no action required |
| NAS | nasal; National Academy of Sciences; National Association of Sanitarians; neonatal airleak syndrome;... |
| N-CPAP, | n-CPAP nasal continuous positive airway pressure |
| salivary calculus | A calculus in a salivary duct or gland. Synonym: supragingival calculus. (05 Mar 2000) |
|---|---|
| hemic calculus | An angiolith or concretion of coagulated blood. Synonym: hemic calculus. (05 Mar 2000) |
| prostatic calculus | <urology>A concretion formed in the prostate gland, composed chiefly of calcium carbonate and phosphate (corpora amylacea). Synonym: prostatolith. (05 Mar 2000) |
| secondary renal calculus | A calculus associated with infection and/or obstruction, usually composed of struvite (magnesium ammonium phosphate). Synonym: infection calculus. (05 Mar 2000) |
| pulp calculus | A calcified body found in the pulp chamber of a tooth; may be composed of irregular dentin (true denticle) or due to ectopic calcification of pulp tissue (false denticle). Synonym: denticle, pulp calcification, pulp calculus, pulp nodule, pulp stone. Origin: endo-+ G. Lithos, stone (05 Mar 2000) |
| serumal calculus | A greenish or dark brown calcareous deposit on the tooth, usually apical to the gingival margin. Synonym: haematogenetic calculus. Synonym: subgingival calculus. (05 Mar 2000) |
| staghorn calculus | A calculus occurring in the renal pelvis, with branches extending into the infundibula and calices. Synonym: branched calculus, coral calculus, dendritic calculus. (05 Mar 2000) |
| nephritic calculus | An obsolete term for renal calculus. (05 Mar 2000) |
| struvite calculus | A calculus in which the crystalloid component consists of magnesium ammonium phosphate. (05 Mar 2000) |
| subgingival calculus | Calcareous deposit found on the tooth apical to the gingival margin. Synonym: serumal calculus. (05 Mar 2000) |
| supragingival calculus | Calcified plaques adherent to tooth surfaces coronal to the free gingival margin. Synonym: salivary calculus. (05 Mar 2000) |
| dendritic calculus | A calculus occurring in the renal pelvis, with branches extending into the infundibula and calices. Synonym: branched calculus, coral calculus, dendritic calculus. (05 Mar 2000) |
| dental calculus | <dentistry> Hard, stonelike concretion, varying in colour from creamy yellow to black, that forms on the teeth or dental prostheses through calcification of dental plaque. (12 Dec 1998) |
| infection calculus | A calculus associated with infection and/or obstruction, usually composed of struvite (magnesium ammonium phosphate). Synonym: infection calculus. (05 Mar 2000) |
| intestinal calculus | A concretion in the bowel, either a coprolith or an enterolith. (05 Mar 2000) |