achromatopsiaWiktionary 原文构词拆分a-前缀(no longer productive) Forming verbs with the sense away, up, on, out. · (no longer productive) Forming verbs with the sense of intensified action.+chromato-前缀color+-opsia后缀(ophthalmology) Forming compound nouns denoting specific deficiencies of sight. [from 19th c.]演变路径（由近及远）英语借自 ←德语 Achromatopsie源自 ←古希腊语 ἀχρώματος词源说明From German Achromatopsie, from Ancient Greek ἀχρώματος (akhrṓmatos), from ἀ- (a-, “without”) + χρῶμα (khrôma, “color”), + -opsie. By surface analysis, a- + chromato- + -opsia.释义（英文）名词 NounTotal color blindness; the total inability to distinguish colors due to the absence of cone cells in the eyes.词族派生词（3）achromatopsiccerebral achromatopsiahemiachromatopsia