Definitions of irritate:
- verb: excite to some characteristic action or condition, such as motion, contraction, or nervous impulse, by the application of a stimulus
Example: "Irritate the glands of a leaf"
- verb: excite to an abnormal condition, of chafe or inflame
Example: "Aspirin irritates my stomach"
- verb: cause annoyance in; disturb, especially by minor irritations
Example: "It irritates me that she never closes the door after she leaves"