• synonyms


[sing-kruh-nuh s]
See more synonyms for synchronous on Thesaurus.com
  1. occurring at the same time; coinciding in time; contemporaneous; simultaneous.
  2. going on at the same rate and exactly together; recurring together.
  3. Physics, Electricity. having the same frequency and zero phase difference.
  4. Computers, Telecommunications. of, relating to, or operating using fixed-time intervals controlled by a clock (opposed to asynchronous).
  5. Aerospace. geostationary.
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Origin of synchronous

1660–70; < Late Latin synchronus < Greek sýnchronos, equivalent to syn- syn- + chrón(os) time + -os adj. suffix; see -ous
Related formssyn·chro·nous·ly, adverbsyn·chro·nous·ness, nounnon·syn·chro·nous, adjectivenon·syn·chro·nous·ly, adverbnon·syn·chro·nous·ness, nounun·syn·chro·nous, adjectiveun·syn·chro·nous·ly, adverbun·syn·chro·nous·ness, noun
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

Related Words for synchronously

closely, combined, commonly, concurrently, jointly, mutually, simultaneously, unanimously, coincidentally, collectively, concertedly, concomitantly, contemporaneously, synchronically, unitedly

Examples from the Web for synchronously

Historical Examples of synchronously

  • Study, of course, but synchronously—letting the work be its own exercises.

    Ex Voto

    Samuel Bulter

  • Mixed conditions in the remains of a locality are often due to the presence of different peoples, synchronously or otherwise.

  • We have already seen that synchronously with this intellectual there was a moral impulse coming into play.

  • Synchronously with the process of ovulation, there commences the monthly function of menstruation.


    William J. Robinson

  • In 1897 a general census was taken as synchronously throughout the empire as was found possible.

British Dictionary definitions for synchronously


  1. occurring at the same time; contemporaneous
  2. physics (of periodic phenomena, such as voltages) having the same frequency and phase
  3. occurring or recurring exactly together and at the same ratethe synchronous flapping of a bird's wings
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Derived Formssynchronously, adverbsynchronousness, noun

Word Origin for synchronous

C17: from Late Latin synchronus, from Greek sunkhronos, from syn- + khronos time
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Word Origin and History for synchronously



1660s, "existing or happening at the same time," from Late Latin synchronus "simultaneous," from Greek synchronos "happening at the same time," from syn- "together" (see syn-) + khronos "time" (see chrono-). Meaning "recurring at the same successive instants of time" is attested from 1670s.

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Online Etymology Dictionary, © 2010 Douglas Harper

synchronously in Medicine


(sĭngkrə-nəs, sĭn-)
  1. Occurring or existing at the same time.
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The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.