1. (

• argonaut

) someone engaged in a dangerous but potentially rewarding adventure ;

2. (

• Argonaut ,

) (Greek mythology) one of the heroes who sailed with Jason in search of the Golden Fleece ;

3. (

• paper_nautilus ,
• nautilus ,
• Argonaut ,
• Argonauta_argo

) cephalopod mollusk of warm seas whose females have delicate papery spiral shells ;