Actinide Definition & Meaning

actinide
noun
  1. any of a series of radioactive elements with atomic numbers 89 through 103

Usage tips for "actinide"

Understanding the precise definition of a word helps you use it with confidence. When using "actinide" in your writing, consider whether you need the word itself or one of its synonyms — subtle differences in meaning can change the tone of a sentence. If you're writing poetry or song lyrics, check the rhymes for actinide to find words that pair well.

Look up another word