naphth-
combining form
variants or naphtho- or less commonly naphtha-
1
: naphtha
naphthene
naphthyl
2
a
: related to naphthalene : naphthoic acid
naphthoquinone
naphthamide
—sometimes in names of compounds in which a benzene nucleus has been replaced by a naphthalene nucleus naphthoresorcinol C10H6(OH)2
b
: naphthol
naphthoxide
3
a
: containing a naphthalene nucleus fused on one or two sides to one or two other rings
naphthacridine
naphthopyran
naphthadiazine
b
: benz- sense 2 —not used systematically
naphthanthracene
Word History
Etymology
International Scientific Vocabulary, from naphtha & naphthaline