[ fer-uh-seen ]
/ ˈfɛr əˌsin /

noun Chemistry.

Also called dicyclopentadienyliron. an orange, crystalline, water-insoluble coordination compound, (C5H5)2Fe, having a camphorlike odor: used chiefly as an antiknock agent for gasoline and as a catalyst.Compare metallocene.
Also called dicyclopentadienyl metal. any of a class of analogous compounds containing a metal other than iron, as nickel or osmium.

Origin of ferrocene

First recorded in 1950–55; ferro- + c(yclopentadi)ene
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2020

British Dictionary definitions for ferrocene

/ (ˈfɛrəʊˌsiːn) /


a reddish-orange insoluble crystalline compound. Its molecules have an iron atom sandwiched between two cyclopentadiene rings. Formula: Fe(C 5 H 5) 2

Word Origin for ferrocene

C20: from ferro- + c (yclopentadi) ene
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