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photochronograph

[foh-tuh-kron-uh-graf, -grahf] /ˌfoʊ təˈkrɒn əˌgræf, -ˌgrɑf/
noun
1.
a device formerly used for taking a series of instantaneous photographs of a rapidly moving object.
2.
a picture taken by such a device.
3.
a chronograph in which the tracing or record is made by a pencil of light on a sensitized surface.
4.
an instrument for measuring small intervals of time by the photographic trace of a pencil of light.
Origin
1885-1890
1885-90; photo- + chronograph
Related forms
photochronography
[foh-toh-kruh-nog-ruh-fee] /ˌfoʊ toʊ krəˈnɒg rə fi/ (Show IPA),
noun
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Based on the Random House Dictionary, © Random House, Inc. 2014.
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British Dictionary definitions for photochronography

photochronograph

/ˌfəʊtəʊˈkrɒnəˌɡrɑːf; -ˌɡræf/
noun
1.
(physics) an instrument for measuring very small time intervals by the trace made by a beam of light on a moving photographic film
Derived Forms
photochronography (ˌfəʊtəʊkrəˈnɒɡrəfɪ) noun
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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