词根词缀：meter-, metro-, metr-, -metrical, -metrically, -metron, -metric, -metrist, -meter, -meters, -metry, -metre

【来源及含义】Greek: measure

【相关词根词缀】 Related "measure" and "metric" words and charts: mens-; Metric Chart of Units; Metric-Length Converter; Metric Units and Links.

【同源单词】absorptiometry, accelerometer, acetimeter, acetimetry, acidimeter, acidimetry

词根词缀：spec-, spic-, spect-, spectat-, spectro- -spectr, -spectful, -spection, -spective

【来源及含义】Latin: to see, seeing; to look at, looking at; sight, to appear, appearing; to behold, to examine, examining

【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-; scopo-; vela-, veal-; video-, visuo-.

【同源单词】Ab alio expectes, alcohol fetopathy, allopatric speciation, aspect, audiospectography, auspex