1. prepulse - Noun
2. prepulse - Verb
English Wikipedia has an article on:Prepulse inhibitionWikipedia
prepulse (plural prepulses)
A weak pulse (stimulus) that inhibits a reaction to a subsequent stronger one
prepulse (third-person singular simple present prepulses, present participle prepulsing, simple past and past participle prepulsed)
To produce such a pulse