VariousWords beta
Definitions:
Noun
actinoid
actinide
actinon
Definition: any of a series of radioactive elements with atomic numbers 89 through 103
Definition: actinide
Adjective
actinoid
Definition: having a radial form; "starfish are actinoid--that is, they are radially symmetrical"
Definition: Having the form of rays; radiated, as in the species of the family Actiniidae.