Synonyms/Hypernyms (Ordered by Estimated Frequency) of noun sipunculid

1 sense of sipunculid

Sense 1
peanut worm, sipunculid -- (small unsegmented marine worm that when disturbed retracts its anterior portion into the body giving the appearance of a peanut)
       => invertebrate -- (any animal lacking a backbone or notochord; the term is not used as a scientific classification)