An apparatus for recording graphically muscular aptness as shown in the ability to counterbalance variable resistances. [ergo- + G. aisthesis, sensation, + grapho, to record]
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er·go·es·the·sio·graph (ur″go-es-theґze-o-graf) [ergo- + esthesio- + -graph] an apparatus for recording graphically muscular reactions to various stimuli.Medical dictionary. 2011.