torrefy verb trans. ['tɒrɪfʌɪ] E17.
[French torréfier from Latin torrefacere dry by heat, from torrere scorch: see -FY.]
Roast, scorch; heat (a substance, esp. an ore or a drug) to drive off all moisture or volatile impurities.

■ torre'faction noun the action or process of drying or roasting something by heat; the fact or condition of being dried or roasted: E17.

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