| NES | not elsewhere specified |
|---|---|
| NOS | network operating system; nitric oxide synthetase; non-organ-specific; not on staff; not otherwise s... |
| NS | natural science; Neosporin; nephrosclerosis; nephrotic syndrome; nervous system; neurological surger... |
| IRMA | 1) Intra-Retinal Microvascular Abnormalities 2) Immuno-Radio-Metric Assay... |
| AGR | aniridia, genitourinary abnormalities, and mental retardation; anticipatory goal response |
| skin abnormalities | Congenital structural abnormalities of the skin. (12 Dec 1998) |
|---|---|
| neonatal diseases and abnormalities | Diseases existing at birth and often before birth, regardless of causation. Of these congenital diseases, those characterised by structural deformities are termed abnormalities. (12 Dec 1998) |
| nervous system abnormalities | Congenital structural abnormalities of the nervous system. (12 Dec 1998) |
| stomatognathic system abnormalities | Congenital structural abnormalities of the mouth and jaws, including the dentition. (12 Dec 1998) |
| digestive system abnormalities | Congenital structural abnormalities of the digestive system. (12 Dec 1998) |
| tooth abnormalities | Congenital absence of or defects in structures of the teeth. (12 Dec 1998) |
| jaw abnormalities | Congenital absence of or defects in structures of the jaw. (12 Dec 1998) |
| eye abnormalities | Congenital absence of or defects in structures of the eye; may also be hereditary. (12 Dec 1998) |
| urogenital abnormalities | Congenital structural abnormalities of the urogenital system. (12 Dec 1998) |
| accessory chromosome | A chromosome existing without its normal homologous chromosome; at the reduction division of gametogenesis an accessory chromosome is likely to be included in one daughter cell and not in the other, but may be lost completely by lagging behind on the equatorial plate. Synonym: monosome, odd chromosome, unpaired allosome, unpaired chromosome. (05 Mar 2000) |
| acentric chromosome | A fragment of a chromosome lacking a centromere and unable to attach to the mitotic spindle, therefore unable to take part in the division of a nucleus and randomly distributed in daughter cells. Synonym: acentric fragment. (05 Mar 2000) |
| acrocentric chromosome | A chromosome with the centromere placed very close to one end so that the short arm is very small, often with a satellite. (05 Mar 2000) |
| balanced chromosome | <genetics> A chromosome which is unable to pair with its homologue and participate in homologus recombination during meiosis because it contains several inversion mutations (that is, has segments which have become flip-flopped). (09 Oct 1997) |
| B chromosome | <genetics> Small acentric chromosome, part of the normal genome of some races and species of plants. (18 Nov 1997) |
| bivalent chromosome | A pair of chromosome's temporarily united. (05 Mar 2000) |