释义 |
naph·thyl \ˈnafˌthil, ÷ˈnapˌ-\ noun (-s) Etymology: International Scientific Vocabulary naphth- + -yl : either of two univalent hydrocarbon radicals C10H7 derived from naphthalene: a. : the radical derived by removal of a hydrogen atom in the alpha or 1-position — called also alpha-naphthyl, 1-naphthyl b. : the radical derived by removal of a hydrogen atom in the beta or 2-position — called also beta-naphthyl, 2-naphthyl |