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Meaning of Hefner lamp | Babel Free

Noun CEFR B2

Definitions

A flame lamp used in photometry that burns amyl acetate and has been used as a standard for measuring luminosity in parts of Europe.

CEFR level

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

hefsek Heft Hefted hefter Heftier Heftiest

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