词根：-ac-, -acu-, -acr-, -acer-, -acet-

【词根含义】：尖,酸

【词根来源】：-ac-来源于拉丁语动词aceo, acere, -, -(尖,酸); -acu-来源于拉丁语动词acu.o, acu.ere, acu.i, acut.us(使尖锐); -acr-和-acer-来源于希腊语形容词akros(最高的,末端的)和拉丁语形容词acer, acris(尖利的,辛辣的); -acet-来源于拉丁语名词acetum, aceti, n(醋)。均可追溯至原始印欧语ak-(尖,锋利)。

【同源单词】：acid, aciform, acme, acupuncture, acute

词根：-meter-, -metr-

【词根含义】：测量;仪表

【词根来源】：来源于希腊语metron测量。可追溯至原始印欧语met-, med-。

【同源单词】：accelerometer, acetimeter, acetometer, altimeter, audiometer

词根词缀：aceto-, acet-; relating to acetic acid derivatives

【来源及含义】Latin: vinegar; sour, to be sour

【相关词根词缀】 Cross references of word families that are related directly, or indirectly, to: "sour, sharp": acerb-; acid-; acies- (not "sour"); acuto- (not "sour"); oxy-; pung- (not "sour").

【同源单词】acetal, acetate, acetic, acetic, acetification, acetifier

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