Definition of actinoid
English to English adjective - Having the form of rays; radiated, as an actinia.
source: Webster 1913 noun - any of a series of radioactive elements with atomic numbers 89 through 103
source: WordNet 3.0 adjective satellite - having a radial form
Starfish are actinoid--that is, they are radially symmetrical.
source: WordNet 3.0
Visual Synonyms 
Nearby Word
actinoid, actinide, actinidia, astonied, acetamide, aquatint, astounded, austenite, acquitment, assident, agistment, assythment, assithment
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