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Meaning of irritability

ir•ri•ta•bil•i•ty

Pronunciation: (ir"i-tu-bil'i-tē), [key]
— pl. -ties.
  1. the quality or state of being irritable.
  2. the ability to be excited to a characteristic action or function by the application of some stimulus: Protoplasm displays irritability by responding to heat.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.
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