| constriction | The act of constricting. (12 Dec 1998) |
|---|---|
| constriction, pathologic | The condition of an anatomical structure's being constricted beyond normal dimensions. (12 Dec 1998) |
| constriction ring | The equatorial ring of microfilaments that diminishes in diameter probably both by contraction and disassembly as cytokinesis proceeds. (18 Nov 1997) |
| primary constriction | The narrowing between the two arms of the chromosome represented by the centromere. (05 Mar 2000) |
| secondary constriction | A subsidiary narrowing of the chromosome associated in some cases with satellites. (05 Mar 2000) |
| pyloric constriction | A prominent fold of mucous membrane at the gastroduodenal junction overlying the pyloric sphincter. Synonym: pyloric valve, valvula pylori, valvulae pylori. (05 Mar 2000) |