What it means
The ending in words for a tube, valve or opening that has become too narrow. Aortic stenosis is a narrowed aortic valve, pyloric stenosis is a narrowed outlet of the stomach, and spinal stenosis is a narrowed spinal canal. It is also a word of its own: stenosisstuh-NOH-sisNarrowing of a passage or opening in the body, such as a blood vessel, heart valve or the spinal canal.sten/o narrow-osis conditionFull entry .
Remember it
Stenosis sounds like "stenciled in": the space is squeezed.
Related terms
stenosis
Narrowing of a passage or opening in the body, such as a blood vessel, heart valve or the spinal canal.
pyloric stenosis
A narrowing of the outlet of the stomach in a young infant, caused by thickening of the pylorus muscle.