• The actinide /ˈæktɨnaɪd/ or actinoid /ˈæktɨnɔɪd/ (IUPAC nomenclature) series encompasses the 15 metallic chemical elements with atomic numbers from 89 to 103, actinium through lawrencium.
  • The actinide series derives its name from the first element in the series, actinium. The informal chemical symbol An is used in general discussions of actinide chemistry to refer to any actinide.
  • Of the actinides, primordial thorium and uranium occur naturally in substantial quantities and small amounts of persisting natural plutonium have also been identified.
FR actinide
  • Part-of-Speech Hierarchy
    1. Morphemes
      • Prefixes
        • Words by prefix
          • Words prefixed with actin-
        • Suffixes
          • Words by suffix
            • Words suffixed with -ide
        • Nouns
          • Countable nouns
        Related Links:
        1. fr actinide
        2. en actinides
        Source: Wiktionary
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        Meaning of actinide for the defined word.

        Grammatically, this word "actinide" is a morpheme, more specifically, a prefixe and a suffixe. It's also a noun, more specifically, a countable noun.
        Definiteness: Level 1
        Definite    ➨     Versatile