/skay"leuhr/ , adj.
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.
4. Math. , Physics. a quantity possessing only magnitude. Cf. vector (def. 1a).
[ 1650-60; scalaris of a ladder. See SCALE 3 , -AR 1 ]