Table of Contents
Synonyms
Antonyms
Etymology

1. actinium

noun. a radioactive element of the actinide series; found in uranium ores.

Synonyms

  • Ac
  • uranium ore
  • chemical element
  • atomic number 89

Antonyms

  • curve

Etymology

  • -ium (English)
  • -um (Latin)
  • actin- (English)

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