ethoxyl

enUK

eth·ox·y

E5236600 (ĭ-thŏk′sē) also eth·ox·yl (ĭ-thŏk′səl)n. The univalent organic group C2H5O-.
[Short for ethoxyl : eth(yl) + ox(o)- + -yl.]

ethoxyl

(ɛˈθɒksɪl) or

ethoxy

n (Chemistry) chem a univalent radical