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spatangoid

spatangoid noun: any echinoderm of the order Spatangoida, of heart urchins.

spatangoid: any echinoderm of the order Spatangoida, of heart urchins
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Noun

spatangoid (plural spatangoids)

  1. Any echinoderm of the order Spatangoida, of heart urchins.
    • The enlarged rear interambulacrum on the oral side of holasteroids and spatangoids is known as the plastron.1983, Ulrich Lehmann, Fossil Invertebrates, page 292
    • Spatangoids constitute a monophyletic group of heart urchins that appears in the early Cretaceous (145 M.Y. ago) and ranges to the Recent.2003, Gunther J. Eble, “Developmental Morphospaces and Evolution”, in James P. Crutchfield, Peter Schuster, editors, Evolutionary Dynamics, page 47
    Synonyms:
    heart urchin

Synonyms of spatangoid

Forms of spatangoid

pluralspatangoids

Questions about spatangoid

What does spatangoid mean?
Spatangoid means any echinoderm of the order Spatangoida, of heart urchins.
What part of speech is spatangoid?
Spatangoid is a noun.
What is the plural of spatangoid?
The plural of spatangoid is spatangoids.

Words near spatangoid in the dictionary

  1. spat the dummy
  2. spat up
  3. spatacsin
  4. spatangid
  5. spatangids
  6. spatangoid
  7. spatangoids
  8. Spataro
  9. Spataros
  10. spatchcock
  11. spatchcocked

Source and license

Adapted from Wiktionary: spatangoid (page history and authors). Text available under the Creative Commons Attribution-ShareAlike 4.0 license. Word.ws reformatted the entry and added links. Wiktionary data of 2026-09-02.

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