Neroli Ner"o*li, n. [F. n['e]roli, said to be from the name of an Italian princess.] (Chem.) An essential oil obtained by distillation from the flowers of the orange. It has a strong odor, and is used in perfumery, etc. Neroli camphor (Chem.), a white crystalline waxy substance, tasteless and odorless, obtained from beroli oil; -- called also auradin.