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Meaning of fold sphere | Babel Free

Noun CEFR B2

Definitions

A fold mirror that is a "sphere", i.e. a spherical mirror

Examples

“Center of curvature for the 3.75-m fold sphere is accessible for in situ testing of this mirror.”

CEFR level

B2

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

See also

fold up fold-down fold-up foldability Foldable foldable rooftop