from The American Heritage® Dictionary of the English Language, 4th Edition
- n. A periodic vibration, as of a violin string, in which the motions are symmetrical about a region of equilibrium. Such a vibration may have only one frequency and amplitude or may be a combination of two or more components. Also called simple harmonic motion.
from the GNU version of the Collaborative International Dictionary of English
- adj. the motion of the point A, of the foot of the perpendicular PA, when P moves uniformly in the circumference of a circle, and PA is drawn perpendicularly upon a fixed diameter of the circle. This is simple harmonic motion. The combinations, in any way, of two or more simple harmonic motions, make other kinds of harmonic motion. The motion of the pendulum bob of a clock is approximately simple harmonic motion.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- n. a periodic motion in which the displacement is either symmetrical about a point or is the sum of such motions
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