binary system
Americannoun
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a system involving only two elements, as 0 and 1 or yes and no.
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Mathematics. a system of counting or measurement whose units are powers of two.
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Astronomy. binary star.
Etymology
Origin of binary system
First recorded in 1825–35
Example Sentences
Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.
"The evidence strongly supports a binary system containing a magnetar -- a neutron star with an extremely strong magnetic field, and a star like our Sun."
From Science Daily • Jan. 28, 2026
TOI-2267 consists of two stars locked in a close orbital dance, forming what astronomers call a compact binary system.
From Science Daily • Nov. 12, 2025
This strange new world orbits around two stars at once, which dance around each other in what astronomers call a binary system.
From Space Scoop • May 6, 2025
It’s a binary system; a choice of extremes.
From Los Angeles Times • Dec. 17, 2024
The binary system lets us express any number, if we have enough bits, as a combination of 1's and 0's.
From The Online World by De Presno, Odd
Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.
