Pronunciation: (yō'gu), [key]
—n. (sometimes cap.)
1. a school of Hindu philosophy advocating and prescribing a course of physical and mental disciplines for attaining liberation from the material world and union of the self with the Supreme Being or ultimate principle.
2. any of the methods or disciplines prescribed, esp. a series of postures and breathing exercises practiced to achieve control of the body and mind, tranquillity, etc.
3. union of the self with the Supreme Being or ultimate principle.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.