Appearance
Use device theme  
Dark theme
Light theme

What does alum mean?

Looking for the meaning or definition of the word alum? Here's what it means.

Noun
  1. An astringent salt, usually occurring in the form of pale crystals, much used in the dyeing and tanning trade and in certain medicines, and now understood to be a double sulphate of potassium and aluminium (K2SO4.Al2(SO4)3.24H2O). [from 14th c.]
  2. (chemistry) Any similar double sulphate in which either or both of the potassium and aluminium is wholly or partly replaced by other univalent or tervalent cations. [from 17th c.]
Verb
  1. (transitive) To steep in, or otherwise impregnate with, a solution of alum; to treat with alum.
Noun
  1. (US) A graduate of a university or other institution.
Find more words!
Use * for blank tiles (max 2) Advanced Search Advanced Search
Use * for blank spaces Advanced Search
Advanced Word Finder

See Also

Nearby Definitions
4-letter Words Starting With
Find Definitions
go
Word Tools Finders & Helpers Apps More Synonyms
Copyright WordHippo © 2024