Pronunciation: (ûr-god'ik), [key]
—adj. Math., Statistics.
of or pertaining to the condition that, in an interval of sufficient duration, a system will return to states that are closely similar to previous ones: the assumption of such a condition underlies statistical methods used in modern dynamics and atomic theory.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.