jellyfish
definition: any of numerous usually marine and free-swimming coelenterates that constitute the sexually reproductive forms of hydrozoans and scyphozoans
example: I study the distribution of jellyfish.
speech part: noun
synonyms:
definition: large siphonophore having a bladderlike float and stinging tentacles
example: I got stung by jellyfish on the beach.
speech part: noun
synonyms:
man-of-war