from The American Heritage® Dictionary of the English Language, 4th Edition

  • n. An optical instrument for the precise measurement of very small time intervals.

from Wiktionary, Creative Commons Attribution/Share-Alike License

  • n. an optical instrument used to measure very small time intervals with precision

from the GNU version of the Collaborative International Dictionary of English

  • n. An instrument for measuring minute intervals of time; used in determining the velocity of projectiles, the duration of short-lived luminous phenomena, etc.

from The Century Dictionary and Cyclopedia

  • n. An instrument for measuring extremely short intervals of time. Specifically
  • n. An instrument for measuring the velocity of projectiles.

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

  • n. an instrument for accurate measurements of small intervals of time


From Ancient Greek χρόνος (khronos, "time") + σκοπός (skopos, "watcher"). (Wiktionary)


  • "He'd used a device he called a chronoscope to search the history of Earth.

    Asimov's Science Fiction

  • The story was about a machine called the chronoscope, which had the power to view the past anywhere in the world, and the efforts of three scientists to wrest the device from strict research limits set by the government.

    Politics Daily

  • Consequently, logically, his invention had to be referred to as a chronoscope if the exact name was to be reliable (from Greek skopein = to see, in contrast to Greek graphein = to write).

    дело мастера Шу

  • Uniformly, as I have shown you, they did not make use of the chronoscope.

    The Complete Stories Vol 1

  • Now what do you suppose would happen if we let news of a home chronoscope get out?

    The Complete Stories Vol 1

  • The original invention of the chronoscope was by Sterbinski-you see, I know that much - and it was well publicized.

    The Complete Stories Vol 1

  • You saw the way my wife reacted to the news of a chronoscope in the basement.

    The Complete Stories Vol 1

  • I had envisioned a chronoscope used for research purposes.

    The Complete Stories Vol 1

  • "You said you didn't tab me on the chronoscope, Araman."

    The Complete Stories Vol 1

  • If the chronoscope becomes the terror of a few politicians, it's a price that must be paid.

    The Complete Stories Vol 1


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