1. (noun) large siphonophore having a bladderlike float and stinging tentacles

• man-of-war
• portuguese man-of-war

1. (noun) any of numerous usually marine and free-swimming coelenterates that constitute the sexually reproductive forms of hydrozoans and scyphozoans

• aegina
• chrysaora quinquecirrha

1. (noun) large siphonophore having a bladderlike float and stinging tentacles

• genus physalia
• physalia

2. (noun) any of numerous usually marine and free-swimming coelenterates that constitute the sexually reproductive forms of hydrozoans and scyphozoans

• cnidaria
• coelenterata
• phylum cnidaria
• phylum coelenterata

1. (noun) large siphonophore having a bladderlike float and stinging tentacles

• siphonophore

2. (noun) any of numerous usually marine and free-swimming coelenterates that constitute the sexually reproductive forms of hydrozoans and scyphozoans

• cnidarian
• coelenterate