Meanings
nounoptical double (plural optical doubles)
plural optical doubles
- astronomyA star that appears as a double due to an optical illusion; in reality, the stars may be far apart from each other.
Translations
French étoile double optique
- étoile double optiquestar that appears as a double due to an optical illusion
Irish réalta dhúbailte optúil
- réalta dhúbailte optúilstar that appears as a double due to an optical illusion
Japanese 見かけの二重星
- 見かけの二重星 (mikake no nijūsei)star that appears as a double due to an optical illusion
Polish optyczna gwiazda podwójna
- optyczna gwiazda podwójnastar that appears as a double due to an optical illusion
Cite this entry
APA
optical double. (n.d.). In WatkinsX Dictionary. Retrieved November 3, 2026, from https://dictionary.watkinsx.com/word/optical%20double
MLA
“optical double.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/optical%20double. Accessed November 3, 2026.
Chicago
WatkinsX Dictionary, s.v. “optical double,” accessed November 3, 2026, https://dictionary.watkinsx.com/word/optical%20double.
Source: optical double on Wiktionary, CC BY-SA 4.0.