| 单词 | echinoderm |
| 释义 | echinoderm (once / 32382 pages) n WORD FAMILY echinoderm: echinoderms USAGE EXAMPLESThe leathery echinoderms only emerge from their hiding-places in the dark. Economist(Mar 31, 2016) Because, of course, sea stars are echinoderms, not fish. The Verge(Nov 18, 2014) Sea stars and some other echinoderms might have had complex visual systems for roughly the past 80 million years. Nature(Apr 04, 2014) n marine invertebrates with tube feet and five-part radially symmetrical bodies Hypo|Hyper sea star, starfish echinoderms characterized by five arms extending from a central disk brittle star, brittle-star, serpent staran animal resembling a starfish with fragile whiplike arms radiating from a small central disc basket fish, basket starany starfish-like animal of the genera Euryale or Astrophyton or Gorgonocephalus having slender complexly branched interlacing arms radiating from a central disc sea urchinshallow-water echinoderms having soft bodies enclosed in thin spiny globular shells crinoidprimitive echinoderms having five or more feathery arms radiating from a central disk holothurian, sea cucumberechinoderm having a flexible sausage-shaped body, tentacles surrounding the mouth and tube feet; free-living mud feeders Astrophyton muricatuma variety of basket star Echinus esculentus, edible sea urchina sea urchin that can be eaten sand dollarflattened disklike sea urchins that live on sandy bottoms heart urchinsea urchin having a heart-shaped body in a rigid spiny shell sea lilycrinoid with delicate radiating arms and a stalked body attached to a hard surface comatulid, feather starfree-swimming stalkless crinoid with ten feathery arms; found on muddy sea bottoms Holothuria edulis, trepangof warm coasts from Australia to Asia; used as food especially by Chinese invertebrate any animal lacking a backbone or notochord; the term is not used as a scientific classification |
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