throbbing

Etymology

verb

1. present participle and gerund of throb

adj

1. Beating or pounding strongly.
   I have a throbbing headache.

noun

1. That which throbs.
   Krause’s “niche hypothesis” may seem more plausible after you’ve listened to his recordings of dense tropical jungles, polyphonous soundscapes packed with whistles and whinnies, whoops, hoots and howls, deep bass throbbings and shrieking buzzes. February 18, 2007, Jeff Hull, “The Noises of Nature”, in New York Times