Dictionary
pul•sa•tion
Pronunciation: (pul-sā'shun), [key]—
n.
1. the act of pulsating; beating or throbbing.
2. a beat or throb, as of the pulse.
3. vibration or undulation.
4. a single vibration.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.