irritability

(ĭr″ĭt-ă-bĭl′ĭ-tē )

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[L. irritabilitas ]

1. Excitability.
2. An ability to respond in a specific way to a change in environment, a property of all living tissue.
3. A condition in which a person, organ, or a part responds excessively to a stimulus.
4. A quick response to annoyance; impatience.

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