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Dictionary

ir•ri•tant

Pronunciation: (ir'i-tnt), [key]
—adj.
tending to cause irritation; irritating.

—n.
1. anything that irritates.
2. Physiol., Pathol.a biological, chemical, or physical agent that stimulates a characteristic function or elicits a response, esp. an inflammatory response.

Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.

irritable bowel syndrome

irritate

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