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English definition of “fractional distillation”

fractional distillation

noun [U] /ˈfræk·ʃə·nəl ˌdɪs·təlˈeɪ·ʃən/
chemistry the process of separating parts of a liquid by heating it gradually so that different parts become gas, rise up, then turn back into liquid that can be collected as they cool
(Definition of fractional distillation from the Cambridge Academic Content Dictionary © Cambridge University Press)
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