Meaning of trivial

triv•i•al

Pronunciation: (triv'ē-ul), [key]
— adj.
  1. of very little importance or value; insignificant: Don't bother me with trivial matters.
  2. commonplace; ordinary.
  3. (of names of organisms) specific, as distinguished from generic.
    1. noting a solution of an equation in which the value of every variable of the equation is equal to zero.
    2. (of a theorem, proof, or the like) simple, transparent, or immediately evident.
  4. (of names of chemical compounds) derived from the natural source, or of historic origin, and not according to the systematic nomenclature: Picric acid is the trivial name of 2,4,6-trinitrophenol.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.
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