trigger area

trigger area definition - medical

trig·ger area (trĭgˈər)

noun
A point or circumscribed area that when irritated or stimulated will give rise to physiological or pathological change elsewhere.

The American Heritage® Medical Dictionary Copyright © 2009 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

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