axiom: Meaning and Definition of
ax•i•om
Pronunciation: (ak'sē-um), [key]
— n.
- a self-evident truth that requires no proof.
- a universally accepted principle or rule.
- 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.