Ar·go·naut [ahr-guh-nawt, -not]
1. (Greek Mythology) someone who sailed with Jason on the Argo in search of the Golden Fleece.
2. a small, floating octopus, where the female has webbed arms and produces a paper-like shell in which the eggs are laid.
3. a person who is in search of something dangerous but rewarding; an adventurer.
4. a person who moved to California during the 1849 Gold Rush.
< Latin Argonauta < Greek Argonaútēs crewman of the ship Argo; see nautical