ˌsegmən.ˈtāshən, -gˌmen- noun
( -s )
Etymology: segment (II) + -ation
1. : the act or process of dividing into segments ; especially : the formation of many cells from a single cell (as in a developing egg) — compare cleavage
2. : annular contraction of smooth muscle (as of the intestine) that seems to cut the part affected into segments — compare peristalsis