echinoid definition

  • noun:
    • An echinoderm of this course Echinoidea, which include the sand dollars and ocean urchins.
    • Any sea urchin or sea buck associated with class Echinoidea
    • In zoology, among Echinoidea.
  • adjective:
    • Of or pertaining to the Echinoidea.
  • others:
    • getting the form or appearance of a sea-urchin: in entomology, put on specific insect-eggs which are shaped like an echinus, and covered with crowded deep pits.
    • related to the Echinoidea.

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