The Collaborative International Dictionary
Spoonworm
Spoonworm \Spoon"worm`\ (sp[=oo]n"w[^u]rm`), n. (Zo["o]l.) A gephyrean worm of the genus Thalassema, having a spoonlike proboscis.
Wiktionary
spoonworm
n. 1 Any of the class Echiura of annelid marine worms. 2 # A worm of the genus (taxlink Thalassema genus noshow=1), with a spoon-like proboscis.