rutylChem.|ˈruːtɪl| [f. as rutic a. + -yl.] (See quots.) 1868Watts Dict.Chem. V. 141 Rutyl, syn. with Capryl, C10H19O, the radicle of rutic or capric acid.1894Morley & Muir Watts' Dict.Chem. IV. 419/2 Rutyl, a name sometimes used for decoyl C10H19O or decyl C10H21.