Main Entry: ir·ri·ta·bil·i·ty

Pronunciation: \ˌir-ət-ə-ˈbil-ət-ē\

Function: noun

Inflected Form(s): plural ir·ri·ta·bil·i·ties

1 : the property of protoplasm and of living organisms that permits them to react to stimuli
2 a : quick excitability to annoyance, impatience, or anger b : abnormal or excessive excitability of an organ or part of the body (as the stomach or bladder)