pyloristenosis

[ pī-lôr′ĭ-stə-nōsĭs, pĭ- ]

n.

Stricture or narrowing of the orifice of the pylorus.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.