1. Regarding something that is responsive to multiple agents or stimuli: The home alarm system that was installed in Jeremy's house was a polysensory system which responded to light and to movements.
2. Affecting or pertaining to several physical mechanisms of feelings: When examining a patient's nervous system, a physician usually includes polysensory tests of touch, position, pain, and reactions to vibrations as the following examples show:

• Light touch with a piece of cotton when the patient's eyes are closed.
• Pin punctures to test pain sensations at different parts of the patient's body
• Pain pinch by squeezing, with a finger and a thumb, the Achilles tendon at the back of the heel.
• Vibration with a tuning fork held against a prominent bone of the ankle or another bone.
• Position sense when the patient, with eyes closed, says in which direction his or her finger is moved by the physician.
• Two-point discrimination which measures the ability of the patient to distinguish between two sharp pains and a single sharp pain.