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单词 echinoid
释义

echinoid

[ ih-kahy-noid, ek-uh-noid ]
/ ɪˈkaɪ nɔɪd, ˈɛk əˌnɔɪd /

adjective

belonging or pertaining to the class Echinoidea, comprising mainly sea urchins and sand dollars.

noun

any echinoderm of the Echinoidea.

Origin of echinoid

1850–55; <New Latin Echinoidea;see echinus, -oidea

Words nearby echinoid

echinococcosis, echinococcus, echinococcus cyst, echinoderm, echinodermatous, echinoid, echinulate, echinus, echium, echiurid, echiuroid
Dictionary.com UnabridgedBased on the Random House Unabridged Dictionary, © Random House, Inc. 2020

Example sentences from the Web for echinoid

  • A pair of ciliated epaulettes on each side of and behind the ciliated ring is very characteristic of some Echinoid larv.

    The Works of Francis Maitland Balfour, Volume II (of 4)|Francis Maitland Balfour

  • The rows of plates in an Echinoid which are not perforated for the emission of the "tube-feet."

    The Ancient Life History of the Earth|Henry Alleyne Nicholson

British Dictionary definitions for echinoid

echinoid
/ (ɪˈkaɪnɔɪd, ˈɛkə-) /

noun

any of the echinoderms constituting the class Echinoidea, typically having a rigid ovoid body. The class includes the sea urchins and sand dollars

adjective

of or belonging to this class
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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更新时间：2024/11/10 11:34:50