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Meaning of optical double | Babel Free

Noun CEFR B2

Definitions

A star that appears as a double due to an optical illusion; in reality, the stars may be far apart from each other.

Equivalents

Français étoile double optique
Gaeilge réalta dhúbailte optúil
日本語 見かけの二重星

CEFR level

B2
Upper Intermediate
This word is part of the CEFR B2 vocabulary — upper intermediate level.
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See also

optical drive optical extent optical fibre optical flat optical glass optical illusion

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