/ Dictionary / Index O oakmoss: Meaning and Definition of Find definitions for: oak•moss Pronunciation: (ōk'môs", -mos"), [key] — n. a lichen, Evernia pranastri, growing on oak and other trees, yielding a resin used in the manufacture of perfumes. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. Oakley Oak Park Related Content Daily Word Quiz: ontiguous Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language