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Related to lengthening reaction: chloropia
lengthening reaction[′leŋk·thə‚niŋ rē‚ak·shən]
Sudden inhibition of the stretch reflex when extensor muscles are subjected to an excessive degree of stretching by forceful flexion of a limb.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.