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