| 单词 | hydrozoan |
| 释义 | hydrozoan (once / 1688473 pages) n WORD FAMILY hydrozoan: hydrozoa, hydrozoans USAGE EXAMPLESHirohito wrote several scientific papers on hydrozoa, a class of aquatic animals related to jellyfish, and Akihito is considered an expert on goby fish. New York Times(Aug 08, 2016) While closely related to jellyfish they are made up of a colony of many tiny marine organisms living together called hydrozoans. BBC(Jul 31, 2015) Though most people think the animals are jellyfish, they are in fact colonies of much smaller creatures known as hydrozoans, Rumrill said. Reuters(Jul 31, 2014) n colonial coelenterates having the polyp phase dominant Syn|Hypo|Hyper hydroid planula the flat ciliated free-swimming larva of hydrozoan coelenterates hydrasmall tubular solitary freshwater hydrozoan polyp siphonophorea floating or swimming oceanic colony of polyps often transparent or showily colored sertularianfeathery colony of long-branched stems bearing stalkless paired polyps nanomiasmall creatures resembling pieces of fuzzy rope; each with a cluster of swimming bells serving as the head and long elastic tentacles for drawing in prey Portuguese man-of-war, jellyfish, man-of-warlarge siphonophore having a bladderlike float and stinging tentacles prayacolonial siphonophore of up to 130 ft long apolemialarge siphonophore of up to 50 ft long cnidarian, coelenterate radially symmetrical animals having saclike bodies with only one opening and tentacles with stinging structures; they occur in polyp and medusa forms |
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