An essential oil obtained by distillation from the flowers of the orange. It has a strong odor, and is used in perfumery, etc. [1913 Webster]
neroli, n. (in full neroli oil) an essential oil from the flowers of the Seville orange, used in perfumery.
Etymology:
F n{eacute}roli f. It. neroli, perh. f. the name of an Italian princess