- any of various sessile, chiefly marine, mosslike animals of the phylum Entoprocta (formerly a subphylum of Bryophyta), occasionally solitary polyps but usually forming branching colonies, each individual polyp having an almost closed ring of tentacles within which lie the mouth and anus.
- belonging or pertaining to the phylum Entoprocta.
Origin of entoproct
First recorded in 1935–40; see origin at Entoprocta
Also called endoproct.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018