sipunculid | sense examples, Usage and Definition from wordnet dictionary online

Noun sipunculid has 1 sense

peanut worm, sipunculid - small unsegmented marine worm that when disturbed retracts its anterior portion into the body giving the appearance of a peanut
--₁ is a kind of invertebrate
--₁ is a member of Sipuncula, phylum Sipuncula