Definition of "throb" []

• To beat rapidly or violently, as the heart; pound. (verb-intransitive)
• To vibrate, pulsate, or sound with a steady pronounced rhythm: boat engines throbbing. (verb-intransitive)
• The act of throbbing; a beating, palpitation, 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.

• "The steady _throb -- throb -- throb_ of the propeller was again shaking the yacht as she took up her journey."
• "As I stood waiting and listening for the enemy's order to attack, I could feel my heart go _throb, throb, throb, throb_, so hard that I seemed to be hearing it at the same time making a dull echo in my brain."
• "At last one word escaped from his lips, and in an instant -- _throb, throb, throb, throb_ -- there was a heavy beating on his ribs, a joyous whining sound greeted his ears, and a cold nose and wet tongue were playing about his face."