[f. L. calōr-em heat + mōtor mover.] ‘A voltaic arrangement consisting of one pair or a few pairs of very large plates, used chiefly for producing considerable heat effects’ (Watts, Dict. Chem., I. 723).

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1832.  Nat. Philos., II. Galvan., ii. § 8 (U. K. S.). The first battery of this kind … constructed by Dr. Hare, professor of chemistry in Philadelphia, and called by him a Calorimotor, from its remarkable power of producing heat.

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