Main Entry:

ir·ri·ta·bil·i·ty

Pronunciation:

\ˌir-ə-tə-ˈbi-lə-tē\

Function:

noun

Inflected Form(s):

plural ir·ri·ta·bil·i·ties

Date:

1755

1: the property of protoplasm and of living organisms that permits them to react to stimuli2: the quality or state of being irritable: as a: quick excitability to annoyance, impatience, or anger : petulance b: abnormal or excessive excitability of an organ or part of the body