optic /'optik; 'aptik/ adj of the eye or the sense of sight: 眼睛的; 視覺(jué)的： the ~ nerve, from the eye to the brain. 視費(fèi)神經(jīng)。 → the illus at eye. 參看 eye 之插圖。 ~ s n (with sing vscience of light and the laws of light. (與輩數(shù)動(dòng)詞連用) 光學(xué)。