Meanings
nounO star (plural O stars)
plural O stars
- astronomySynonym of O-type star.
Vreux: I would like to ask Ann Underhill why, if there is another star by chance in the line of sight to SMC WR stars, it's an O star rather than, say, an A type?
2012, P. S. Conti, C. de Loore, Mass Loss and Evolution of O-Type Stars, page 60Synonyms: O-type star
Synonyms & antonyms
nounSynonym of O-type star.
Similar
O-type star
Cite this entry
APA
O star. (n.d.). In WatkinsX Dictionary. Retrieved November 4, 2026, from https://dictionary.watkinsx.com/word/O%20star
MLA
“O star.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/O%20star. Accessed November 4, 2026.
Chicago
WatkinsX Dictionary, s.v. “O star,” accessed November 4, 2026, https://dictionary.watkinsx.com/word/O%20star.
Source: O star on Wiktionary, CC BY-SA 4.0.