Bar′o‐met″ro‐graph (–rō̍‐grȧf), n. [Gr. βαροσ weight + μέτρον measure + -graph.] A form of barometer so constructed as to inscribe of itself upon paper a record of the variations of atmospheric pressure.
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Webster's Dictionary 1913
Webster's Revised Unabridged Dictionary, C. & G. Merriam Co., 1913.