alum

音标['ælәm]

汉语翻译

n. 明矾, 矾, 校友
【化】明矾; 钾铝明矾
【医】明矾

a white crystalline double sulfate of aluminum: the ammonium double sulfate of aluminum
同义词：ammonia alum, ammonium alum
a white crystalline double sulfate of aluminum: the potassium double sulfate of aluminum
同义词：potassium alum, potash alum
a person who has received a degree from a school (high school or college or university)
同义词：alumnus, alumna, graduate, grad
a double sulphate of aluminum and potassium that is used as an astringent (among other things)

alum 2

n.Informal （名词）【非正式用语】
An alumna or alumnus.
女校友、女毕业生，男校友、男毕业生