词根词缀：nycti-, nyct-, nycto-, nyc-

【来源及含义】Greek: night; a relationship to darkness, dark

【相关词根词缀】Other related "dark; shadow, shade; black" units: lygo-; melan-; nigri-; nocti-; scoto-; skio-; umbra-. Another related "night" unit: nocti-.

【同源单词】epinyctal, epinyctis, geonyctitropism, nychthemeron, nyctalopia, nyctamblyopia

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