Metrograph definitions

Metrograph

• (n.) An instrument attached to a locomotive for recording its speed and the number and duration of its stops.
Found on http://thinkexist.com/dictionary/meaning/metrograph/

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Metrograph

Met'ro·graph noun [ Greek ... measure + -graph .] An instrument attached to a locomotive for recording its speed and the number and duration of its stops.
Found on http://www.encyclo.co.uk/webster/M/59

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