/ Dictionary / Index D dodecyl aldehyde: Meaning and Definition of Find definitions for: do'de•cyl al'dehyde Pronunciation: (dō'du-sil), [key] — Chem. Chem. See Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. dodecasyllable dodecylphenol Related Content Daily Word Quiz: perspicacious Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language