The Collaborative International Dictionary
Gastrotricha
Gastrotricha \Gas*trot"ri*cha\, n. pl., [NL., fr. Gr. ? belly + ?, ?, hair.] (Zo["o]l.) A group of small wormlike animals, having cilia on the ventral side. The group is regarded as an ancestral or synthetic one, related to rotifers and annelids.