词根词缀：bi-, bin-, bino-, bis-

【来源及含义】Latin: two, twice, double, twofold; a number; it normally functions as a prefix

【相关描述】This bi- is used before s, c, or a vowel. Don't confuse this bi- with another one which means "life".

All words except biennial referring to periods of time and prefixed by bi- are potentially ambiguous. Since bi- can be taken to mean either "twice each" or "every two", a word like "biweekly" can be understood as "twice each week" or "every two weeks".

【同源单词】biacid, biangular, biannual, biannual, biarchy, biarticulate

词根词缀：ophthalmo-, ophthalm-, -ophthalmia, -ophthalmic, -ophthalmos

【来源及含义】Greek: eye; sight

【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-; op-, -optic; phaco-; pupillo-; retino-; uveo-.

【同源单词】anophthalmia, arteria ophthalmica, autoophthalmoscope, autoophthalmoscopy, binophthalmoscope, calyculus ophthalmicus

词根词缀：scopo-, scop-, scept-, skept-, -scope-, -scopy, -scopia, -scopic, -scopist

【来源及含义】Greek > Latin: see, view, sight, look, look at, examine, behold, consider

【相关词根词缀】 Cross references of word families that are related directly, or indirectly, to: "appear, visible, visual, manifest, show, see, reveal, look": blep-; delo-; demonstra-; opt-; -orama; pare-; phanero-; phant-; pheno-; spec-; vela-, veal-; video-, visuo-.

【同源单词】abdominoscope, abdominoscopy, acoustic microscope, acroscopic, actinoscopy, aerobioscope