Definitions

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

  • n. Informal A short space of time; a moment. See Synonyms at moment.

from Wiktionary, Creative Commons Attribution/Share-Alike License

  • n. A very short, unspecified length of time.
  • n. A unit of time defined by the frequency of its basic timer; historically, and by convention, 0.01 seconds, but some operating systems use other values.
  • n. The time between alternating current power cycles (1/60 or 1/50 of a second)
  • n. The time taken for light to travel one centimetre in a vacuum (sometimes one foot, or sometimes the width of a nucleon)

from the GNU version of the Collaborative International Dictionary of English

  • n. A moment; an instant.

from The Century Dictionary and Cyclopedia

  • n. A moment; an instant: as, I shall be with you in a jiffy.

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

  • n. a very short time (as the time it takes the eye to blink or the heart to beat)

Etymologies

Origin unknown.
(American Heritage® Dictionary of the English Language, Fourth Edition)

Examples

Comments

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  • In physics (particularly in quantum physics and often in chemistry), a jiffy is the time taken for light to travel the radius of an electron.

    In computing, a jiffy is the duration of one tick of the system timer interrupt. It is not an absolute time interval unit, since its duration depends on the clock interrupt frequency of the particular hardware platform. Typically, this time is 0.01 seconds.

    In electronics, a jiffy is the time between alternating current power cycles (1/60 or 1/50 of a second).



    October 5, 2007