a. pertaining to or like a sea urchin.
   ♦ echinate(d), a. prickly.
   ♦ echinid(an), n. sea urchin.

Dictionary of difficult words. 2015.

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  • Echinoid — E*chi noid, a. [Echinus + oid.] (Zo[ o]l.) Of or pertaining to the Echinoidea. n. One of the Echinoidea. [1913 Webster] || …   The Collaborative International Dictionary of English

  • echinoid — [ē kī′noid΄, ek′ənoid] adj. [ ECHIN(O) + OID] of or like a sea urchin n. any of a class (Echinoidea) of echinoderms, including the sea urchins and sand dollars …   English World dictionary

  • echinoid — noun Date: 1864 sea urchin …   New Collegiate Dictionary

  • echinoid — /i kuy noyd, ek euh noyd /, adj. 1. belonging or pertaining to the class Echinoidea, comprising mainly sea urchins and sand dollars. n. 2. any echinoderm of the Echinoidea. [1850 55; < NL Echinoidea; see ECHINUS, OIDEA] * * * …   Universalium

  • echinoid — noun Any sea urchin or sea dollar of the class Echinoidea …   Wiktionary

  • echinoid — [ ɛkɪnɔɪd] noun Zoology an echinoderm of the class Echinoidea; a sea urchin. Origin from mod. L. Echinoidea, from Echinus (genus name), from Gk ekhinos (see echinus) …   English new terms dictionary

  • echinoid — echi·noid …   English syllables

  • echinoid — e•chi•noid [[t]ɪˈkaɪ nɔɪd, ˈɛk əˌnɔɪd[/t]] n. 1) ivt any echinoderm of the class Echinoidea, comprising sea urchins and sand dollars, characterized by a rounded, armless body and a rigid endoskeleton with movable spines 2) ivt of, belonging to,… …   From formal English to slang

  • echinoid — /əˈkaɪnɔɪd/ (say uh kuynoyd), /ˈɛkənɔɪd/ (say ekuhnoyd) adjective 1. belonging to the Echinoidea, a class of echinoderms of rounded form covered with projecting spines, including the sea urchins, etc. 2. resembling a sea urchin. –noun 3. one of… …  

  • echinoid — n. a sea urchin …   Useful english dictionary

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