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Definition of: picoline
(pik′ə·lēn, -lin) noun Chem.
Any of three isomeric liquid compounds, C6H7N, contained in coal tar, naphtha, bone oil, etc., and homologous with pyridine. Also pic′o·lin (-lin). [<L pix, picis, PITCH1 + -OL2 + -INE2]
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