The Collaborative International Dictionary of English v.0.48:
Argonautidae \Argonautidae\ n. 1. 1 a family of cephalopods represented solely by the genus Argonauta. Syn: family Argonautidae. [WordNet 1.5]WordNet (r) 3.0 (2006):
Argonautidae n 1: represented solely by the genus Argonauta [syn: Argonautidae, family Argonautidae]