What is clock?

  • (verb): Measure the time or duration of an event or action or the person who performs an action in a certain period of time.
    Synonyms: time
    See also — Additional definitions below


A clock is an instrument used to indicate, keep, and co-ordinate time. The word clock is derived ultimately (via Dutch, Northern French, and Medieval Latin) from the Celtic words clagan and clocca meaning "bell". A silent instrument missing such a mechanism has traditionally been known as a timepiece. In general usage today a "clock" refers to any device for measuring and displaying the time. Watches and other timepieces that can be carried on one's person are often distinguished from clocks.

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Some articles on clock:

Modified Frequency Modulation - MMFM
... abbreviated M²FM, or M2FM, is similar to MFM, but suppresses additional clock bits, producing a longer maximum run length (a (1,4) RLL code) ... In particular, a clock pulse is only inserted between a pair of adjacent 0 bits if the first bit of the pair did not have a clock pulse inserted before it ... In the example below, clock bits that would have been present in MFM are noted in bold Data 1 ... Clock 0 ... Encoded ...
Specific Types of Clocks
... By mechanism By function By style Astronomical clock Atomic clock Candle clock Congreve clock Digital clock Electric clock Flip clock Hourglass Incense clock Mechanical watch Oil-lamp clock Pendulum clock Pipe ...
Christian Marclay - Selected Exhibitions
... The Clock - 14 September to 25 November 2012 - The Power Plant Gallery Toronto, Canada The Clock – March to June 2012 – Museum of Contemporary Art, Sydney, Australia The Clock – 10 February to ...
Simon Willard Clocks - Legacy
... Nowadays, Simon Willard's clocks are recognized as American masterpieces ... In perfect condition, a Simon Willard's clock is usually sold from $50,000 up to $250,000 ... The Willard brothers revolutionized clock manufacturing by both division of labor and by using multiple previously molded parts ...
Floral Clock
... A floral clock or flower clock is a large decorative clock with the clock face formed by carpet bedding, usually found in a park or other public ... The first floral clock was invented by John McHattie of Edinburgh Parks and was first planted up in the spring of 1903 in West Princes Street Gardens, Edinburgh ... In Edinburgh the clock mechanism is set inside the plinth of the statue to Allan Ramsay adjacent and lasted until 1936 ...

More definitions of "clock":

  • (noun): A timepiece that shows the time of day.

Famous quotes containing the word clock:

    He makes his voyage too late, perhaps, by a true water clock who delays too long.
    Henry David Thoreau (1817–1862)