stimulus
noun
stim·u·lus
ˈstim-yə-ləs
plural stimuli
ˈstim-yə-ˌlī
-ˌlē
: something that rouses or incites to activity: such as
a
c
: an agent (such as an environmental change) that directly influences the activity of a living organism or one of its parts (as by exciting a sensory organ or evoking muscular contraction or glandular secretion)
Love words? Need even more definitions?
Merriam-Webster unabridged
Share