from The American Heritage® Dictionary of the English Language, 4th Edition
- intransitive v. To beat rapidly or violently, as the heart; pound.
- intransitive v. To vibrate, pulsate, or sound with a steady pronounced rhythm: boat engines throbbing.
- n. The act of throbbing; a beating, palpitation, or vibration.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- v. To pound or beat rapidly or violently
- v. To vibrate or pulsate with a steady rhythm
- n. A beating, vibration or palpitation
from the GNU version of the Collaborative International Dictionary of English
- intransitive v. To beat, or pulsate, with more than usual force or rapidity; to beat in consequence of agitation; to palpitate; -- said of the heart, pulse, etc.
- n. A beat, or strong pulsation, as of the heart and arteries; a violent beating; a papitation
from The Century Dictionary and Cyclopedia
- To beat or pulsate, as the heart, but with increased or quickened force or rapidity; palpitate.
- To quiver or vibrate.
- n. A beat or strong pulsation; a violent beating, as of the heart and arteries; a palpitation: as, a throb of pleasure or of pain.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- n. a deep pulsating type of pain
- n. an instance of rapid strong pulsation (of the heart)
- v. tremble convulsively, as from fear or excitement
- v. expand and contract rhythmically; beat rhythmically
- v. pulsate or pound with abnormal force
Middle English throbben, of imitative origin.(American Heritage® Dictionary of the English Language, Fourth Edition)
Appears 14th century; possibly of imitative origin. (Wiktionary)