| 单词 | hydroid |
| 释义 | hydroid (once / 55490 pages) n WORD FAMILY hydroid: hydroids USAGE EXAMPLESCardinalfish zip by a loggerhead turtle as it rests among feathery invertebrates called hydroids. National Geographic(Nov 16, 2015) The mission was conducted by US underwater robotics company, Hydroid, to collect data from the wreckage site. BBC(Apr 27, 2015) These turned out to be tiny rafts of life carrying several different organisms, including crabs, barnacles, anemones, hydroids, and amphipods. Scientific American(May 12, 2014) n colonial coelenterates having the polyp phase dominant Syn|Hypo|Hyper hydrozoan 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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