binary system

American  

noun

1. a system involving only two elements, as 0 and 1 or yes and no.

2. Mathematics. a system of counting or measurement whose units are powers of two.

3. Astronomy. binary star.

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Etymology

Origin of binary system

First recorded in 1825–35

Example Sentences

This discovery also confirms a long-predicted type of binary system that had never been clearly identified.

From Science Daily

The two asteroids orbit a shared center of mass in what scientists call a binary system.

From Science Daily

Though he takes a minute to upbraid her, they’re obviously the show’s binary system, and Decker is in any case a cheery sort who takes things in stride — even prison, seemingly.

From Los Angeles Times

"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

EX Hydrae exists in a binary system alongside a normal main sequence star.

From Science Daily