[en-tuh-ruh p-noost, -nyoost]
any of various invertebrate animals of the class Enteropneusta, comprising the acorn worms.
Origin of enteropneust
< New Latin Enteropneusta, equivalent to Greek entero- entero- + -pneusta, neuter plural of pneustós breathed, verbid of pneîn to breathe
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019