Any worm of the Chaetognatha

• Transparent marine worm with horizontal lateral and caudal fins and a row of movable curved spines at each side of the mouth

WordNet Word definitions in WordNet
n. any worm of the Chaetognatha; transparent marine worm with horizontal lateral and caudal fins and a row of movable curved spines at each side of the mouth [syn: arrowworm ]

The Collaborative International Dictionary Word definitions in The Collaborative International Dictionary
chaetognath \chaetognath\ n. any worm of the Chaetognatha; transparent marine worm with horizontal lateral and caudal fins and a row of movable curved spines at each side of the mouth. Syn: arrowworm.

Wiktionary Word definitions in Wiktionary
alt. Any of several marine worms of the phylum Chaetognatha. n. Any of several marine worms of the phylum Chaetognatha.