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adjective syn·chro·nous \ˈsiŋ-krə-nəs, ˈsin-\

Simple Definition of synchronous

  • : happening, moving, or existing at the same time

Source: Merriam-Webster's Learner's Dictionary

Full Definition of synchronous

  1. 1 :  happening, existing, or arising at precisely the same time

  2. 2 :  recurring or operating at exactly the same periods

  3. 3 :  involving or indicating synchronism

  4. 4a :  having the same period; also :  having the same period and phaseb :  geostationary

  5. 5 :  of, used in, or being digital communication (as between computers) in which a common timing signal is established that dictates when individual bits can be transmitted and which allows for very high rates of data transfer





Examples of synchronous in a sentence

  1. <the synchronous arrival of a baby sister and loss of a beloved grandmother strongly affected the child>

Did You Know?

Communications satellites are usually put into a synchronous (or geosynchronous) orbit, circling the earth once every 24 hours and so appearing to hover over a single spot on the surface. This type of synchronized movement is important, since you have to know where to aim your satellite dish. In the computer field, synchronous usually refers to the use of a simple timing signal that permits very rapid exchange of data between computers. The kind of mysterious coincidence sometimes called synchronicity—such as the appearance of two different comic-strip characters named Dennis the Menace in the U.S. and Britain within three days of each other in 1951—has fascinated people for centuries.

Origin and Etymology of synchronous

Late Latin synchronos, from Greek, from syn- + chronos time

First Known Use: 1669

Synonym Discussion of synchronous

contemporary, contemporaneous, coeval, synchronous, simultaneous, coincident mean existing or occurring at the same time. contemporary is likely to apply to people and what relates to them <Abraham Lincoln was contemporary with Charles Darwin>. contemporaneous is more often applied to events than to people <contemporaneous accounts of the kidnapping>. coeval refers usually to periods, ages, eras, eons <two stars thought to be coeval>. synchronous implies exact correspondence in time and especially in periodic intervals <synchronous timepieces>. simultaneous implies correspondence in a moment of time <the two shots were simultaneous>. coincident is applied to events and may be used in order to avoid implication of causal relationship <the end of World War II was coincident with a great vintage year>.

Medical Dictionary


adjective syn·chro·nous \ˈsiŋ-krə-nəs, ˈsin-\

Medical Definition of synchronous

  1. 1:  happening, existing, or arising at precisely the same time

  2. 2:  recurring or operating at exactly the same periods

  3. 3:  having the same period; also :  having the same period and phase



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a very small amount

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