GSR uncommon noun 1. a change in the electrical properties of the skin in response to stress or anxiety; can be measured either by recording the electrical resistance of the skin or by recording weak currents generated by the body Synonymsgalvanic skin responsepsychogalvanic responseelectrodermal responseelectrical skin responseFere phenomenonTarchanoff phenomenon Related words Broader terms reaction Parts lie detector WordNet 2.1 (Princeton University). WordNet 2.1 Copyright Princeton University. All rights reserved.