metallocene

[muh-tal-uh-seen]
noun Chemistry.
  1. an organometallic coordination compound consisting of a metal bonded to one or two rings of cyclopentadiene.
Compare ferrocene.

Origin of metallocene

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

metallocene

noun
  1. 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
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