ˈnāvəl, ˈvintə(r)z- noun
Usage: usually capitalized N&W
Etymology: after R.H.C. Nevile, 19th century chemist and Adolph Winther, 20th century German chemist
: a crystalline phenolic sulfonic acid HOC 10 H 6 SO 3 H made by sulfonation of alpha-naphthol and used as a dye intermediate; 1-naphthol-4-sulfonic acid