Dictionary

sensor

noun sen·sor \ˈsen-ˌsr, ˈsen(t)-sər\

: a device that detects or senses heat, light, sound, motion, etc., and then reacts to it in a particular way

Full Definition of SENSOR

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)

Examples of SENSOR

  1. Image sensors are used in digital cameras.
  2. Infrared sensors can track an object's movement.

Origin of SENSOR

Latin sentire to perceive + English 1-or — more at sense
First Known Use: circa 1928

Related to SENSOR

Rhymes with SENSOR

sensor

noun sen·sor \ˈsen-ˌs(ə)r, ˈsen(t)-sər\   (Medical Dictionary)

Medical Definition of SENSOR

:  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); also :  sense organ

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