actinoid


Also found in: Thesaurus, Medical, Wikipedia.

ac·ti·noid

 (ăk′tə-noid′)
n.

actinoid

(ˈæktɪˌnɔɪd)
adj
(Zoology) having a radiate form, as a sea anemone or starfish
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.actinoid - any of a series of radioactive elements with atomic numbers 89 through 103actinoid - any of a series of radioactive elements with atomic numbers 89 through 103
group, grouping - any number of entities (members) considered as a unit
Adj.1.actinoid - having a radial formactinoid - 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
Translations
Actinoid
attinoide