- an organometallic coordination compound consisting of a metal bonded to one or two rings of cyclopentadiene.
Origin of metallocene
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
- 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
C20: from metallo- + -cene, as in ferrocene