fag end (oh) and diazepam N-demethylase (medicine)

fag end (oh)

n [C] BrE informal
[Date: 1600-1700; Origin: fag 'loose part' (15-18 centuries)]
the end of a cigarette that someone has finished smoking

diazepam N-demethylase (medicine)

diazepam N-demethylase
<enzyme> Drug metabolizing enzyme; demethylates diazepam

Registry number: EC 1.5.-

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