D defs.my
Entry 1 sense Webster, 1913

Antiperistaltic

/(ăn`tĭ*pĕr`ĭ*stăl"tĭk)/ · An·ti·per·i·stal·tic · IPA
01 a. Opposed to, or checking motion; acting upward; -- applied to an inverted action of the intestinal tube.
  1. 1.
    Opposed to, or checking motion; acting upward; -- applied to an inverted action of the intestinal tube.(Med.)