Antiperistaltic :: Antiperistaltic (a.) Opposed to, or checking motion; acting upward; -- applied to an inverted action of the intestinal tube..
Eristalis :: Eristalis (n.) A genus of dipterous insects whose young (called rat-tailed larvae) are remarkable for their long tapering tail, which spiracles at the tip, and for their ability to live in very impure and salt waters; -- also called drone fly..
Peristalsis :: Peristalsis (n.) Peristaltic contraction or action.
Peristaltic :: Peristaltic (a.) Applied to the peculiar wormlike wave motion of the intestines and other similar structures, produced by the successive contraction of the muscular fibers of their walls, forcing their contents onwards; as, peristaltic movement..