echiuroid
nounDefinition of echiuroid
: any of a phylum (Echiura synonym Echiuroidea) of marine worms of uncertain taxonomic affinities that have a sensitive but nonretractile proboscis above the mouth
Keep scrolling for more
Test Your Vocabulary
Valentine's Day Quiz
-
- Which word used to mean sweetheart or darling?

Test your visual vocabulary with our 10-question challenge!
TAKE THE QUIZ
Test Your Knowledge - and learn some interesting things along the way.
TAKE THE QUIZ
Share echiuroid
Resources for echiuroid