chro·​nom·​e·​ter | \ krə-ˈnä-mə-tər How to pronounce chronometer (audio) \

Definition of chronometer

: timepiece especially : one designed to keep time with great accuracy

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Synonyms for chronometer


clock, timekeeper, timepiece, timer

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Examples of chronometer in a Sentence

a fancy new chronometer that is light-years more advanced than your average wristwatch

Recent Examples on the Web

Cellular chronometers may even decide when your time is up. Karen Wright, Scientific American, "Biological Clocks Operate on Many Scales," 21 Jan. 2012 Harrison was self-educated, and is credited with creating the first marine chronometer to calculate longitude when sailors were at sea. Mackenzie Cummings-grady, Billboard, "Google Doodle Celebrates Famous Clockmaker John Harrison," 3 Apr. 2018 The Clock of the World, an extravagant chronometer telling visitors the exact minute and hour anywhere in the world, stood by the entrance to Tomorrowland, symbolizing the land’s temporal transition. Rachel Withers, Slate Magazine, "How did Walt Disney’s vision of a futuristic metropolis become a quaint symbol of a bygone era?," 4 Sep. 2017 Harrison is the famous inventor of the marine chronometer which enabled accurate navigation at sea. Nicholas Manousos,, "This Sculptor Wants to Turn Your House Into a Clock," 21 July 2017 The awards were launched in observance of a half-century of the iconic Rolex Oyster chronometer, the world’s first waterproof wristwatch. National Geographic, "These 10 Innovators Are Changing the World, From Oceans to Eye Care," 15 Nov. 2016 With few exceptions, the modern gadget is as impossible to navigate as were the seas before the sextant and the marine chronometer. Charlie Sorrel, WIRED, "History’s 5 Best Interface Designs," 22 Apr. 2008

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'chronometer.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

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First Known Use of chronometer

circa 1735, in the meaning defined above

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Time Traveler for chronometer

The first known use of chronometer was circa 1735

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More Definitions for chronometer



English Language Learners Definition of chronometer

: a watch or clock that measures time very exactly


chro·​nom·​e·​ter | \ krə-ˈnäm-ət-ər How to pronounce chronometer (audio) \

Medical Definition of chronometer

: an instrument for measuring time especially : one designed to keep time with great accuracy

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Comments on chronometer

What made you want to look up chronometer? Please tell us where you read or heard it (including the quote, if possible).


an act or instance of editing or removing

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