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torrefy

Pronunciation: /ˈtɒrɪfʌɪ/

Definition of torrefy

verb (torrefies, torrefying, torrefied)

[with object] technical

roast, scorch, or dry (a substance such as an ore, a drug, or a fuel) with heat to drive off all moisture or impurities:torrefying wood loses 30% of the mass but only 10% of the energy