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Meaning of echelle grating | Babel Free

Noun CEFR B2

Definitions

A form of diffraction grating optimized for high orders of diffraction

CEFR level

B2

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

See also

echellette Echelon echelon form echelon lens echelon parking echelonment