chaetognath n 1: 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}, {chaetognath}]
Chaetognath \Ch[ae]"tog*nath\, a. (Zool.) Of or pertaining to the Ch[ae]tognatha. [1913 Webster]
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. [WordNet 1.5] Chaetognatha