photochronograph

[ foh-tuh-kron-uh-graf, -grahf ]

/ ˌfoʊ təˈkrɒn əˌgræf, -ˌgrɑf /

Save This Word!

noun

a device formerly used for taking a series of instantaneous photographs of a rapidly moving object.

a picture taken by such a device.

a chronograph in which the tracing or record is made by a pencil of light on a sensitized surface.

an instrument for measuring small intervals of time by the photographic trace of a pencil of light.

QUIZ

CAN YOU ANSWER THESE COMMON GRAMMAR DEBATES?

There are grammar debates that never die; and the ones highlighted in the questions in this quiz are sure to rile everyone up once again. Do you know how to answer the questions that cause some of the greatest grammar debates?

Question 1 of 7

Which sentence is correct?

His boss, whom he admires, is waiting to meet with him about the big project.

His boss, who he admires, is waiting to meet with him about the big project.

TAKE THE QUIZ TO FIND OUT

Origin of photochronograph

First recorded in 1885–90; photo- + chronograph

OTHER WORDS FROM photochronograph

pho·to·chro·nog·ra·phy

[foh-toh-kruh-nog-ruh-fee], /ˌfoʊ toʊ krəˈnɒg rə fi/, noun

Words nearby photochronograph

photochemical, photochemical smog, photochemistry, photochromic, photochromy, photochronograph, photocoagulation, photocompose, photocomposer, photocomposition, photoconduction

British Dictionary definitions for photochronograph

photochronograph

/ (ˌfəʊtəʊˈkrɒnəˌɡrɑːf, -ˌɡræf) /

noun

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 of photochronograph

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