enteropneust

[ en-tuh-ruhp-noost, -nyoost ]

noun

1. any of various invertebrate animals of the class Enteropneusta, comprising the acorn worms.

Word History and Origins

Origin of enteropneust¹

< New Latin Enteropneusta, equivalent to Greek entero- entero- + -pneusta, neuter plural of pneustós breathed, verbid of pneîn to breathe