spatangoid
Word Rarity
Very rare
Frequency: Zipf frequency 0.00 in modern English
14
Scrabble Score
10
Letters
2
Syllables
9
Unique Chars
Meaning
noun
Any echinoderm of the order Spatangoida, of heart urchins.
Example Sentences
- "The enlarged rear interambulacrum on the oral side of holasteroids and spatangoids is known as the plastron."
- "Spatangoids constitute a monophyletic group of heart urchins that appears in the early Cretaceous (145 M.Y. ago) and ranges to the Recent."
- "Oval tests with specific ventral morphology for efficient burrowing allowed spatangoids to burrow deeply in sand to avoid gastropod predation."