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Meaning of marking blue | Babel Free

Noun CEFR B2

Definitions

A dye used in metalworking, made by mixing methylated spirit with shellac and gentian violet, to aid in marking out rough parts for further machining.

uncountable

CEFR level

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

See also

marking gage marking gauge marking knife marking nut marking nut tree marking pen

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