Advertisement

stimulus (n.)

plural stimuli, 1680s, originally as a medical term, "something that goads a lazy organ" (often the male member), from a modern use of Latin stimulus "a goad, a pointed stick," figuratively "a sting, a pang; incitement, spur," from PIE *sti- "point, prick, pierce" (see stick (v.)). General sense of "something that excites or arouses the mind or spirit" is from 1791. Psychological sense is first recorded 1894.

Others Are Reading

Advertisement
Definitions of stimulus from WordNet

stimulus (n.)
any stimulating information or event; acts to arouse action;
Synonyms: stimulation / stimulant / input
From wordnet.princeton.edu