词根词缀:a-, an-
【来源及含义】Greek: prefix; no, absence of, without, lack of; not
【相关描述】These prefixes are normally used with elements of Greek origin, a- is used before consonants and an- is used before vowels.
It affects the meanings of hundreds of words.
There are too many words that use these prefix elements to list all of them on this site; however, there are significant examples listed in this and the other units where they exist.
【同源单词】abacterial, abaptism, abarognosis, abasia, abiocoen, abiogenesis
词根词缀:op-, opt-, optico-, opsi-, opso-, -opia, -ops, -opsia, -opsis, -opsy, -optic, -opic, -opy
【来源及含义】Greek: eye[s]; sight; see, vision
【相关词根词缀】 Related references to "eye" or "eye part" word families: blepharo-; core-; corneo-; eye, eyes; irido-; lenti-, lens-; lenticulo-; ocelli-; oculo-; ophthalmo-; phaco-; pupillo-; retino-; uveo-. Cross references of word families that are related directly, or indirectly, to: "appear, visible, visual, manifest, show, see, reveal, look": blep-; delo-; demonstra-; -orama; pare-; phanero-; phant-; pheno-; scopo-; spec-; vela-, veal-; video-, visuo-.
【同源单词】achromat, achromatopsia, acyanoblepsia, acyanopsia, aeluropsis, aglaucopsia
词根词缀:ortho-, orth-
【来源及含义】Greek: right, straight, correct, true; designed to correct
【同源单词】anorthographic, anorthography, anorthopia, anorthosis, diorthosis, orthergasia