We found 19 dictionaries that define the word variable star:

General (15 matching dictionaries)

1. variable star: Merriam-Webster
2. variable star: Oxford Learner's Dictionaries
3. variable star: American Heritage Dictionary of the English Language
4. variable star: Collins English Dictionary
5. variable star: Vocabulary.com
6. variable star: Wordnik
7. variable star: Wiktionary
8. variable star: The Wordsmyth English Dictionary-Thesaurus
9. variable star: Infoplease Dictionary
10. variable star: Dictionary.com
11. Variable Star, Variable star: Wikipedia, the Free Encyclopedia
12. variable star: Rhymezone
13. variable star: FreeDictionary.org
14. variable star: Mnemonic Dictionary
15. variable star: TheFreeDictionary.com

Computing (1 matching dictionary)

16. Variable Star (novel), Variable-star, Variable star (disambiguation), variable star: Encyclopedia

Science (2 matching dictionaries)

17. Variable Star: Eric Weisstein's World of Astronomy
18. Variable Star: Extragalactic Astronomy

Tech (1 matching dictionary)

19. JPL Terms (No longer online)

(Note: See variable_stars as well.)

Definitions from Wiktionary (variable star) ▸ noun:  (astronomy) Any star whose brightness varies. Similar: variable, helium variable, Mira variable, runaway star, eclipsing binary, exotic star, starlight, space velocity, visual magnitude, quasi-star, more... Opposite: constant star, non-variable star, stable star Types: Cepheid, RR Lyrae, W Virginis, Delta Cephei, RR Lyr, more... Phrases: eclipsing variable star, Cataclysmic variable star, more... ▸ Words similar to variable star ▸ Usage examples for variable star ▸ Idioms related to variable star ▸ Wikipedia articles (New!) ▸ Words that often appear near variable star ▸ Rhymes of variable star ▸ Invented words related to variable star