Definition of QUATERNARY

quaternary

Plural: quaternaries

Noun

  • last 2 million years
  • the cardinal number that is the sum of three and one
  • A quaternary compound.
  • The Quaternary period or the system of deposits laid down during it.

Adjective Satellite

  • consisting of or especially arranged in sets of four
    • "a quaternary compound"
  • coming next after the third and just before the fifth in position or time or degree or magnitude
    • "the quaternary period of geologic time extends from the end of the tertiary period to the present"

Adj

  • Of fourth rank or order.
  • Of a mathematical expression containing e.g. x⁴.
  • Relating to or in number base four.
  • quaternary ammonium.
  • Composed of four elements.

Examples

  • the quaternary stress in a pronounced word

Origin / Etymology

Derived from Latin quaternārius (“containing or consisting of four”), from quaternī (“four each”, “four at a time”) + -ārius (whence the English suffix -ary); compare the French quaternaire.

Synonyms

4, 4th, Age of Man, four, foursome, fourth, IV, Little Joe, quadruplet, quartet, quatern, Quaternary period, quaternate, quaternion, quaternity, tetrad, quartal, quartary

Scrabble Score: 22

quaternary: valid Scrabble (US) TWL Word
quaternary: valid Scrabble Word in Merriam-Webster MW Dictionary
quaternary: valid Scrabble Word in International Collins CSW Dictionary

Words With Friends Score: 23

quaternary: valid Words With Friends Word