stenosis Meaning, Definition & Usage

  1. noun abnormal narrowing of a bodily canal or passageway
    stricture.

WordNet

Ste*no"sis noun
Etymology
NL., fr. Gr. narrow.
Definitions
  1. (Med.) A narrowing of the opening or hollow of any passage, tube, or orifice; as, stenosis of the pylorus. It differs from stricture in being applied especially to diffused rather than localized contractions, and in always indicating an origin organic and not spasmodic.

Webster 1913