Electro-chronograph

E`lec`tro-chron´o`graph


n.1.(Astron. Physics) An instrument for obtaining an accurate record of the time at which any observed phenomenon occurs, or of its duration. It has an electro-magnetic register connected with a clock. See Chronograph.
Webster's Revised Unabridged Dictionary, published 1913 by G. & C. Merriam Co.
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