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synchronous

[sing-kruh-nuh s] /ˈsɪŋ krə nəs/
adjective
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.
Origin
1660-1670
1660-70; < Late Latin synchronus < Greek sýnchronos, equivalent to syn- syn- + chrón(os) time + -os adj. suffix; see -ous
Related forms
synchronously, adverb
synchronousness, noun
nonsynchronous, adjective
nonsynchronously, adverb
nonsynchronousness, noun
unsynchronous, adjective
unsynchronously, adverb
unsynchronousness, noun
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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British Dictionary definitions for synchronousness

synchronous

/ˈsɪŋkrənəs/
adjective
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 rate: the synchronous flapping of a bird's wings
Derived Forms
synchronously, adverb
synchronousness, noun
Word Origin
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
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Word Origin and History for synchronousness

synchronous

adj.

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.

Online Etymology Dictionary, © 2010 Douglas Harper
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synchronousness in Medicine

synchronous syn·chro·nous (sĭng'krə-nəs, sĭn'-)
adj.
Occurring or existing at the same time.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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