Dictionary

acorn worm

noun

Definition of ACORN WORM

:  any of a class (Enteropneusta) of burrowing wormlike marine animals having an acorn-shaped proboscis and classified with the hemichordates
ADVERTISEMENT

First Known Use of ACORN WORM

circa 1889

Browse

Next Word in the Dictionary: à corps perduPrevious Word in the Dictionary: acorn woodpeckerAll Words Near: acorn worm
ADVERTISEMENT
How to use a word that (literally) drives some people nuts.
Test your vocab with our fun, fast game
Ailurophobia, and 9 other unusual fears