antiperistaltic

noun Physiology.

1. reversed peristaltic action of the intestines, by which their contents are carried upward.

noun physiol

1. contractions of the intestine that force the contents in the opposite direction to the normal

adj.

1. Of or relating to antiperistalsis.
2. Impeding or arresting peristalsis.

n.

1. reversed peristalsis