Pronunciation: (skā'lur), [key]
1. representable by position on a scale or line; having only magnitude: a scalar variable.
2. of, pertaining to, or utilizing a scalar.
3. ladderlike in arrangement or organization; graduated: a scalar structure for promoting personnel.
Math., Physics.a quantity possessing only magnitude. Cf. vector (def. 1a).
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.