acorn worm(redirected from Enteropneust)
Also found in: Dictionary, Medical, Wikipedia.
acorn worm:see HemichordataHemichordata
, small phylum of marine invertebrates closely related to both the echinoderms (phylum Echinodermata) and chordates (phylum Chordata). Acorn worms, class Enteropneusta, are the most common hemichordates.
..... Click the link for more information. .
acorn worm[′ā‚kȯrn ‚wərm]
Any member of the class Enteropneusta, free-living animals that usually burrow in sand or mud. Also known as tongue worm.