/ Dictionary / Index N neroli oil: Meaning and Definition of Find definitions for: ner'o•li oil" Pronunciation: (ner'u-lē, nēr'-), [key] a brown essential oil derived from the flowers of the orange tree, Citrus aurantium, used in the manufacture of perfumes. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. nerol Neronize Related Content Daily Word Quiz: clairvoyant Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language