Definitions

from The American Heritage® Dictionary of the English Language, 5th Edition.

  • noun An exceptionally precise timepiece.

from The Century Dictionary.

  • noun Any instrument that measures time, or divides time into equal portions, or is used for that purpose, as a clock, watch, or dial.
  • noun Specifically, a time-keeper of great accuracy designed to be used for determining the longitude at sea, or for any other purpose where a very exact measurement of time is required.
  • noun An instrument intended to set the pace and rhythm for a piece of music; a metronome.

from the GNU version of the Collaborative International Dictionary of English.

  • noun An instrument for measuring time; a timekeeper.
  • noun A portable timekeeper, with a heavy compensation balance, and usually beating half seconds; -- intended to keep time with great accuracy for use an astronomical observations, in determining longitude, etc.
  • noun (Mus.) A metronome.
  • noun See under Box.
  • noun a chronometer in the form of a large watch.
  • noun See Rate, v. t.

from Wiktionary, Creative Commons Attribution/Share-Alike License.

  • noun A device for measuring time, such as a watch or clock

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

  • noun an accurate clock (especially used in navigation)

Etymologies

from Wiktionary, Creative Commons Attribution/Share-Alike License

From Ancient Greek χρόνος (chronos, "time") + μέτρον (metron, "measure")

Examples

  • A chronometer is strapped to their wrist, but subjects reported their free-fall lasted longer than the chronometer recorded.

    Ann Reynolds: The End of Time

  • A chronometer is strapped to their wrist, but subjects reported their free-fall lasted longer than the chronometer recorded.

    Ann Reynolds: The End of Time

  • A chronometer is strapped to their wrist, but subjects reported their free-fall lasted longer than the chronometer recorded.

    Ann Reynolds: The End of Time

  • A chronometer is strapped to their wrist, but subjects reported their free-fall lasted longer than the chronometer recorded.

    Ann Reynolds: The End of Time

  • A chronometer is strapped to their wrist, but subjects reported their free-fall lasted longer than the chronometer recorded.

    Ann Reynolds: The End of Time

  • The evolutionary chronometer is a measure of ancient origins — it cannot pick up divergence into separate breeding lines that has occurred in the past few hundred years.

    The Truth About Dogs

  • The evolutionary chronometer is a measure of ancient origins — it cannot pick up divergence into separate breeding lines that has occurred in the past few hundred years.

    The Truth About Dogs

  • The chronometer, which is merely the least imperfect time-piece man has devised, makes possible the surest and easiest method by far of ascertaining longitude.

    A CLASSIC OF THE SEA

  • The chronometer, which is merely the least imperfect time-piece man has devised, makes possible the surest and easiest method by far of ascertaining longitude.

    A Classic of the Sea

  • The chronometer, which is merely the least imperfect time-piece man has devised, makes possible the surest and easiest method by far of ascertaining longitude.

    A Collection of Stories

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