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：spiro-, spir-, spira-, spirat-, -spire, -spiring, -spiration, -spirational (breath)

【来源及含义】Latin: breath of life, breath, breathing; mind; spirit, "soul"; courage

【相关描述】Don't confuse this spiro-, with another spiro- meaning "coil, twisted".

【相关词根词缀】 Word units related to breath and breathe: hal-; pneo-; pneumato-; pneumo-; psych-.

【同源单词】antiperspirant, aquatic respiration, aspirant, aspirate, aspirate, aspiration