Definition of "pulsation" [pul•sa•tion]

• The act of pulsating. (noun)
• A single beat, throb, or vibration. (noun)

American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

• "Promotes collagen and cellular activity This Photon Ultrasonic Massager is equipped with the function selection of Continous wave and Pulse wave The Pulse wave is also known as a pulsation, which the emission method of instant termination after each emitting of ultrasonic waves Removing acne (Continuous emission waves)"
• "If I possessed this gentleman's ingenuity I might have whipped up a quick little prank like this in order to go viral on YouTube, however I just sat in the chair staring at the water waiting for a kind of pulsation like Jeff Goldblum in "Jurassic Park.""
• "In order to have interesting performances of choral and orchestral music the conductor must see to it that the performers play or sing all rhythmic figures correctly, that long tones are sustained for their correct duration, and that in general the musical performance be permeated by that steady throb of regular pulsation which is the foundation of all rhythmic coherence."