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Dictionary

un•du•la•tion

Pronunciation: (un"ju-lā'shun, un"dyu-, -du-), [key]
—n.
1. an act of undulating; a wavelike motion.
2. a wavy form or outline.
3. one of a series of wavelike bends, curves, or elevations.
4. Physics.
a. a wave.
b. the motion of waves.

Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.

undulate

undulatory

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