Alum — synonyms, definition

1. alum (Noun)

Grad alumna alumnus ammonia alum ammonium alum graduate potash alum potassium alum

alum (Noun) — A white crystalline double sulphate of aluminium: the ammonium double sulphate of aluminium.

alum (Noun) — A white crystalline double sulphate of aluminium: the potassium double sulphate of aluminium.

alum (Noun) — A person who has received a degree from a school (high school, college or university).

alum (Noun) — A double sulphate of aluminium and potassium that is used as an astringent (among other things).

al aluminium aluminum astringent astringent drug atomic number 13 bookman double salt scholar scholarly person student styptic Ivy Leaguer old boy