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jellyfish
(-fis̸h′)
noun pl. jellyfish, jellyfishes
- any of various free-swimming, mostly marine cnidarians (esp. class Scyphozoa) with a body made up largely of jellylike substance and shaped like an umbrella: it has long, hanging tentacles with stinging cells on them
- Informal a weak-willed person
See jellyfish in American Heritage Dictionary 4
noun pl. jellyfish jellyfish or jel·ly·fish·es
- 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.
- Informal One who lacks force of character; a weakling.
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