We found 12 dictionaries that define the word binary stars:

General (6 matching dictionaries)

1. binary stars: Merriam-Webster
2. binary stars: Collins English Dictionary
3. binary stars: Vocabulary.com
4. binary stars: Wiktionary
5. Binary stars: Wikipedia, the Free Encyclopedia
6. Binary stars: TheFreeDictionary.com

Computing (1 matching dictionary)

7. Binary stars: Encyclopedia

Science (3 matching dictionaries)

8. Binary Stars: Eric Weisstein's World of Astronomy
9. Imagine the Universe! Dictionary (No longer online)
10. Binary Stars: Extragalactic Astronomy

Tech (2 matching dictionaries)

11. High-Energy Astrophysics (No longer online)
12. JPL Terms (No longer online)

(Note: See binary_star as well.)

Definitions from Wiktionary (binary star) ▸ noun:  (astronomy) A stellar system in which two stars orbit around their center of mass; double star. ▸ Also see binary_star Phrases: Battle at the Binary Stars, more... ▸ Words similar to binary stars ▸ Usage examples for binary stars ▸ Idioms related to binary stars ▸ Wikipedia articles (New!) ▸ Words that often appear near binary stars ▸ Rhymes of binary stars ▸ Invented words related to binary stars