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sensor

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sensor

Main Entry:: sen·sor
Pronunciation:: \ˈsen-ˌsȯr, ˈsen(t)-sər\
Function:: noun
Etymology:: Latin sentire to perceive + English ¹-or — more at sense
Date:: circa 1928

1 : a device that responds to a physical stimulus (as heat, light, sound, pressure, magnetism, or a particular motion) and transmits a resulting impulse (as for measurement or operating a control) 2 : sense organ

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