Definition of Actinoid

Adjective: actinoid  'ak-ti,noyd

1. Having a radial form
   "starfish are actinoid--that is, they are radially symmetrical"

1. Any of a series of radioactive elements with atomic numbers 89 through 103
   - actinide, actinon

See also:
actiniums
actinoids

Anagrams containing the word actinoid

ainocitd dactinoi idactino oidactin noidacti inoidact tinoidac ctinoida