/ Dictionary / Index P phenol coefficient: Meaning and Definition of Find definitions for: phe'nol coeffi'cient Pronunciation: [key] — Chem. Chem. the number indicating the effectiveness of a disinfectant as a germicide relative to phenol, which is arbitrarily assigned the number 1: based on the time required to kill a given quantity of a specific type of bacteria. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. phenolated phenolic resin Related Content Daily Word Quiz: maritime Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language