chronograph

[ kron-uh-graf, -grahf ]
/ ˈkrɒn əˌgræf, -ˌgrɑf /

noun

a timepiece fitted with a recording device, as a stylus and rotating drum, used to mark the exact instant of an occurrence, especially in astronomy.
a timepiece capable of measuring extremely brief intervals of time accurately, as a stopwatch able to record fractions of a second as well as elapsed time.

verb (used with object)

to time by means of a chronograph.

Origin of chronograph

First recorded in 1655–65; chrono- + -graph

OTHER WORDS FROM chronograph

chro·nog·ra·pher [kruh-nog-ruh-fer] /krəˈnɒg rə fər/, nounchron·o·graph·ic [kron-uh-graf-ik] /ˌkrɒn əˈgræf ɪk/, adjectivechron·o·graph·i·cal·ly, adverbchro·nog·ra·phy, noun
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for chronograph

British Dictionary definitions for chronograph

chronograph
/ (ˈkrɒnəˌɡrɑːf, -ˌɡræf, ˈkrəʊnə-) /

noun

an accurate instrument for recording small intervals of time
any timepiece, esp a wristwatch designed for maximum accuracy

Derived forms of chronograph

chronographer (krəˈnɒɡrəfə), nounchronographic (ˌkrɒnəˈɡræfɪk), adjectivechronographically, adverb
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