harman noun2 •An indole alkaloid, 1-methyl-9H-β-carboline (C12H10N2) found in several foods, plants and beverages which is carcinogen. It is a specific, reversible inhibitor of monoamine oxidase A. •(no longer used) A policeman.I Frisky Moll, with my rum coll, / Wou'd Grub in a bowzing ken; / But ere for the scran he had tipt the cole, / The Harman he came in. — 1724 formsharmans
