词根词缀：acuto-, acut-, acuti-, acu-, -cusis; also, agu-

【来源及含义】Latin: sharp, to sharpen, point; needle, pin

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

【同源单词】acicula, acicular, acicular ice, aciculate, aciculate, aciculiform