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Meaning of axiom

ax•i•om

Pronunciation: (ak'sē-um), [key]
— n.
  1. a self-evident truth that requires no proof.
  2. a universally accepted principle or rule.
  3. a proposition that is assumed without proof for the sake of studying the consequences that follow from it.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.
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