Main Entry:

gas·tro·trich

Pronunciation:

\ˈgas-trə-ˌtrik\

Function:

noun

Etymology:

ultimately from Greek gastr- + trich-, thrix hair — more at trich-

Date:

1940

: any of a phylum (Gastrotricha) of minute aquatic pseudocoelomate animals that usually have a spiny or scaly cuticle and cilia on the ventral surface