metallocene

[ muh-tal-uh-seen ]
/ məˈtæl əˌsin /

noun Chemistry.

an organometallic coordination compound consisting of a metal bonded to one or two rings of cyclopentadiene.

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Origin of metallocene

metallo- + -cene < Greek koinós shared (see ceno-2)
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British Dictionary definitions for metallocene

metallocene
/ (mɪˈtæləʊˌsiːn) /

noun

chem any one of a class of organometallic sandwich compounds of the general formula M(C 5 H 5) 2, where M is a metal atomSee ferrocene

Word Origin for metallocene

C20: from metallo- + -cene, as in ferrocene
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