irritation

noun

1. 1

   the act of troubling or annoying someone

2. 2

   unfriendly behavior that causes anger or resentment

3. 3

   an uncomfortable feeling of mental painfulness or distress

4. 4

   a sudden outburst of anger

   his temper sparked like damp firewood

5. 5

   the neural or electrical arousal of an organ or muscle or gland

6. 6

   the psychological state of being irritated or annoyed

7. 7

   (pathology) abnormal sensitivity to stimulation

   any food produced irritation of the stomach