Pronunciation: (doo-rā'shun, dyoo-), [key]
1. the length of time something continues or exists (often used with the).
2. continuance in time.
3. (in the philosophy of Bergson) a temporal continuum, intuitively known, within which the élan vital operates.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.