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stenosis

noun

  1. Abnormal narrowing of a blood vessel or other tubular organ or structure. It is also sometimes called a stricture.
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Wiktionary

Pronunciation: /stɪˈnəʊ.sɪs/ / /stəˈnoʊ.sɪs/

noun

Etymology: From New Latin stenōsis, from Ancient Greek στένωσις (sténōsis, “narrowing”), from στενόω (stenóō, “to confine, to contract”) + -σις (-sis, nominal suffix), equivalent to steno- + -osis.

  1. An abnormal narrowing or stricture in a blood vessel or other tubular organ.
  2. A reduction in either mental or physical capacity.