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：pneo-, -pnea, -pneic, -pnoea, -pnoeic, -pneo
【来源及含义】Greek: air, wind; breathing
【相关词根词缀】 Word units related to breath and breathe: hal-; pneumato-; pneumo-; psych-; spiro. Cross references of word groups that are related, directly or indirectly, to: "air, wind": aello-; aeolo-; aero-; anemo-; atmo-; austro-; flat-, flatu-; phys-; pneumato-; turb-; vent-; zephyro-.