jel·ly·fish (j l  -f sh )n. pl. jellyfish or jel·ly·fish·es 1. a. Any of numerous usually free-swimming marine coelenterates of the class Scyphozoa, characteristically having a gelatinous, tentacled, often bell-shaped medusoid stage as the dominant phase of its life cycle. b. Any of various similar or related coelenterates. 2. Informal One who lacks force of character; a weakling. |
jellyfish [ˈdʒɛlɪˌfɪʃ]
n pl -fish, -fishes
1. (Life Sciences & Allied Applications / Animals) any marine medusoid coelenterate of the class Scyphozoa, having a gelatinous umbrella-shaped body with trailing tentacles
2. (Life Sciences & Allied Applications / Animals) any other medusoid coelenterate
3. Informal a weak indecisive person
ThesaurusLegend: Synonyms Related Words Antonyms
| Noun | 1. |  jellyfish - large siphonophore having a bladderlike float and stinging tentaclessiphonophore - a floating or swimming oceanic colony of polyps often transparent or showily colored genus Physalia, Physalia - Portuguese man-of-war |
| 2. | jellyfish - 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 - hydras; polyps; jellyfishes; sea anemones; corals cnidarian, coelenterate - radially symmetrical animals having saclike bodies with only one opening and tentacles with stinging structures; they occur in polyp and medusa forms Aegina - small medusa Chrysaora quinquecirrha - a type of jellyfish |
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