from The American Heritage® Dictionary of the English Language, 4th Edition
- n. A quantity, such as mass, length, or speed, that is completely specified by its magnitude and has no direction.
- n. Mathematics A number, numerical quantity, or element in a field.
- n. A device that yields an output equal to the input multiplied by a constant, as in a linear amplifier.
- adj. Of or relating to a scalar.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- adj. Having magnitude but not direction
- adj. Of, or relating to scale
- n. A quantity that has magnitude but not direction; compare vector
- n. An amplifier whose output is a constant multiple of its input
from the GNU version of the Collaborative International Dictionary of English
- n. In the quaternion analysis, a quantity that has magnitude, but not direction; -- distinguished from a vector, which has both magnitude and direction.
from The Century Dictionary and Cyclopedia
- n. In quaternions, a real number, positive or negative, integral, fractional, or surd: but some writers lately extend the meaning so as to include imaginaries.
- Of the nature of a scalar.
- n. In physics, a quantity, such as mass or volume, which has magnitude but not direction.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- adj. of or relating to a directionless magnitude (such as mass or speed etc.) that is completely specified by its magnitude
- adj. of or relating to a musical scale
- n. a variable quantity that cannot be resolved into components
Latin scālāris, of a ladder, from scālae, ladder; see scale2.(American Heritage® Dictionary of the English Language, Fourth Edition)
From Latin scālāris, adjectival form from scāla ("a flight of steps, stairs, staircase, ladder, scale"), for *scadla, from scandere ("to climb"); compare scale. (Wiktionary)