external stimulus

noun

A signal (stimulus) that originates from outside an organism.

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Meanings

nounexternal stimulus (plural external stimuli)

plural external stimuli

  1. A signal (stimulus) that originates from outside an organism.
Cite this entry
APA

external stimulus. (n.d.). In WatkinsX Dictionary. Retrieved November 3, 2026, from https://dictionary.watkinsx.com/word/external%20stimulus

MLA

“external stimulus.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/external%20stimulus. Accessed November 3, 2026.

Chicago

WatkinsX Dictionary, s.v. “external stimulus,” accessed November 3, 2026, https://dictionary.watkinsx.com/word/external%20stimulus.

Source: external stimulus on Wiktionary, CC BY-SA 4.0.