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[toh-lan] /ˈtoʊ læn/
noun, Chemistry.
a crystalline, water-insoluble, solid, unsaturated compound, C 14 H 10 , used chiefly in organic synthesis.
Also called diphenylacetylene.
Origin of tolan
variant of tolane. See toluene, -ane Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2017.
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  • One daughter, Mrs. tolan, met a tragic death at the hands of an insane husband, in 1881.

    Fifty Years In The Northwest William Henry Carman Folsom
British Dictionary definitions for tolan


a white crystalline derivative of acetylene; diphenylacetylene; diphenylethyne. Formula: C6H5C:CC6H5
Word Origin
C19: from tol(uene) + -an (see -ane)
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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