We found 5 dictionaries that define the word companion star:
General (3 matching dictionaries)
Computing (1 matching dictionary)
Science (1 matching dictionary)
General (3 matching dictionaries)
- companion star: Merriam-Webster
- companion star: Infoplease Dictionary
- companion star: Dictionary.com
Computing (1 matching dictionary)
- Companion star: Encyclopedia
Science (1 matching dictionary)
- Companion Star: Extragalactic Astronomy