WordReference Random House Unabridged Dictionary of American English © 2026
as•ter•oi•de•an
(as′tə roi′dē ən),USA pronunciation n.
adj.
- Invertebratesan echinoderm of the class Asteroidea, comprising the starfishes.
adj.
- Invertebratesbelonging or pertaining to the Asteroidea.
- Asteroide(a) + -an
'asteroidean' also found in these entries (note: many are not synonyms or translations):