| electrochronograph | <astronomy> An instrument for obtaining an accurate record of the time at which any observed phenomenon occurs, or of its duration. It has an electromagnetic register connected with a clock. See Chronograph. Source: Websters Dictionary (01 Mar 1998) |
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| electrochronographic | Belonging to the electrochronograph, or recorded by the aid of it. Source: Websters Dictionary (01 Mar 1998) |
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