tolan

[ toh-lan ]
/ ˈtoʊ læn /

noun Chemistry.

a crystalline, water-insoluble, solid, unsaturated compound, C14H10, used chiefly in organic synthesis.

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Also called diphenylacetylene.

Origin of tolan

variant of tolane. See toluene, -ane
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2020

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British Dictionary definitions for tolan

tolan

tolane (ˈtəʊleɪn)

/ (ˈtəʊlæn) /

noun

a white crystalline derivative of acetylene; diphenylacetylene; diphenylethyne. Formula: C 6 H 5 C:CC 6 H 5

Word Origin for tolan

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