All possible synonyms of the word Actinoid as well as its hypernyms, hyponyms, antonyms, derivations, entailments, meronyms, pertainyms, domain members, similar words, verb groups, and so on...
- having a radial form; "starfish are actinoid--that is, they are radially symmetrical"
- actinomorphic, actinomorphous: capable of division into symmetrical halves by any longitudinal plane passing through the axis
Actinoid, actinide, actinon
- any of a series of radioactive elements with atomic numbers 89 through 103
- group, grouping: any number of entities (members) considered as a unit
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