binary star

noun

Definition of binary star

  1. :  a system of two stars that revolve around each other under their mutual gravitation

1826

First Known Use of binary star

1826


Learn More about binary star


Seen and Heard

What made you want to look up binary star? Please tell us where you read or heard it (including the quote, if possible).

Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!

WORD OF THE DAY

to glide in or as if in an airplane

Get Word of the Day daily email!

Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!