词根词缀：arcto-, arct-

【来源及含义】Greek: of the bear, bear [the animal]; or the north, northern

【相关词根词缀】 Related "bear, bears (animals)" word units: Berserk; ursi-.

【同源单词】antarctic air, antarctic anticyclone, Antarctic bottom water, Antarctic Circumpolar Current, Antarctic, Antarctical

词根词缀：circum-

【来源及含义】Latin: around, about, surrounding, closed curve, circling, circular on all sides; literally, "in a circle"

【相关词根词缀】 Related "around, round, surrounding" units: ambi-; ampho-; circ-; cyclo-, -cycle; gyro-; peri-.

【同源单词】Antarctic Circumpolar Current, circuit, circuitous, circuitously, circuitousness, circuitry