Spatangoid

noun

noun ·Rare ·Advanced level

Definitions

Noun
  1. 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."

Synonyms

All synonyms
heart urchinheart urchin

Example

More examples

"The enlarged rear interambulacrum on the oral side of holasteroids and spatangoids is known as the plastron."

Related phrases

heart urchin

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Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.