Dictionary
ir•ri•tate
Pronunciation: (ir'i-tāt"), [key]
—v., -tat•ed, -tat•ing.
—
v.t.
1. to excite to impatience or anger; annoy.
2. Physiol., Biol.to excite (a living system) to some characteristic action or function.
3. Pathol.to bring (a body part) to an abnormally excited or sensitive condition.
—
v.i.
to cause irritation or become irritated.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.