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词根词缀:helico-, helic-, helici-, heli-, helix-

【来源及含义】Greek: spiral, coil; twisted, bent; spiral-shaped; a coil; by extension, "snail"

【相关词根词缀】Other "coil" words are at this spiro- unit.

【同源单词】helical, helicase, heliciform, helicine, helicity, helicobacter

词根词缀:-ity

【来源及含义】Latin: suffix used to form abstract nouns expressing act, state, quality, property, or condition corresponding to an adjective

【同源单词】abnormality, absorbability, acclivity, acerbity, acridity, acrity