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单词 echinoderm
释义
echinoderm
noun[C]
biologyspecialized
uk
/ekˈaɪ.nəʊ.dɜːm/us
/ɪˈkaɪ.noʊ.dɝːm/
atypeofseacreaturewithraisedareasorsharppointsonitsskinand abodymade of fiveequalpartsarrangedaround thecentre:
棘皮动物（一种海洋生物，表皮有凸起或棘刺，身体呈五辐对称形）
Echinoderms like thestarfishliveon theseafloor.像海星这样的棘皮动物生活在海底。
picture of echinoderm
Mark Newman/The Image Bank/GettyImages
SMART Vocabulary: related words and phrases
Sea creatures
  • abalone
  • amphipod
  • anemone
  • barnacle
  • barrier reef
  • cowrie
  • crab
  • cray
  • crayfish
  • crustacean
  • littleneck clam
  • lobster
  • marron
  • mollusc
  • mussel
  • shellfish
  • shipworm
  • shrimp
  • squid
  • starfish
See more results »
(Definition ofechinodermfrom theCambridge Advanced Learner's Dictionary & Thesaurus© Cambridge University Press)

Examplesofechinoderm

echinoderm
Constituents also include grains present in any platform or basin environment, such asechinodermfragments and diverse lithoclasts.
From theCambridge English Corpus
Exceptions there are, notably with the echinoderms and some vertebrates, but these are rather brief and the great wealth of palaeontological data is largely overlooked.
From theCambridge English Corpus
The mollusc andechinodermdebris are common and ubiquitous along the clinoform.
From theCambridge English Corpus
After death and decay of ligaments, a loosely suturedechinodermwould be easily attacked by infaunal scavengers/predators.
From theCambridge English Corpus
Medium-grained sandstones (protoquartzite) contain quite well-rounded quartz grains, quartzite lithoclasts, muscovite, plagioclase (rare) and bioclasts, especiallyechinodermplates, cemented by calcite spar.
From theCambridge English Corpus
Major events in the evolution of echinoderms viewed by the light of embryology.
From theCambridge English Corpus
Another block includes shell fragments,echinodermplates, thin-walled bivalves, iron-oxide-rich pellets, polyzoan fragments and small geopetals.
From theCambridge English Corpus
On the morphology of the mitotic apparatus isolated fromechinodermeggs.
From theCambridge English Corpus
Our results indicate that though post-fertilisation peroxidase release is similar in echinoderms and amphibians, it has quite opposite effects.
From theCambridge English Corpus
In the echinoderms, peptides released from the jelly coat of eggs play a pivotal role as a signal for such changes.
From theCambridge English Corpus
The time to reach the peak is very short in echinoderms (0.4 s) but very long in mammals (10-30 min).
From theCambridge English Corpus
The more abundant skeletal grains (up to 15 % of the components) are echinoderms, bivalves and lituolids.
From theCambridge English Corpus
The identification of these two distinct body wall regions permitted the establishment of new homologies pertaining to all echinoderms.
From theCambridge English Corpus
Brachiopods are the volumetrically dominant component of the communities, whereas ostracodes, trilobites, echinoderms and conodonts are of much less importance.
From theCambridge English Corpus
These examples are from corpora and from sources on the web. Any opinions in the examples do not represent the opinion of the Cambridge Dictionary editors or of Cambridge University Press or its licensors.
#https://dictionary.cambridge.org//dictionary/english/echinoderm##
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更新时间：2024/12/28 3:12:31