/ Dictionary / Index D dicyclopentadienyl metal: Meaning and Definition of Find definitions for: di•cy•clo•pen•ta•di•en'yl met"al Pronunciation: (dī-sī"klō-pen"tu-dī-en'l), [key] — Chem. Chem. ferrocene (def. 2). Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. dicyclopentadienyliron did Related Content Daily Word Quiz: cetacean Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language