alum cake

noun

: a product of the action of sulfuric acid on clay consisting chiefly of silica and aluminum sulfate

Word History

First Known Use

1836, in the meaning defined above

Time Traveler
The first known use of alum cake was in 1836

Love words?

You must — there are over 200,000 words in our free online dictionary, but you are looking for one that’s only in the Merriam-Webster Unabridged Dictionary.

Start your free trial today and get unlimited access to America's largest dictionary, with:

  • More than 250,000 words that aren't in our free dictionary
  • Expanded definitions, etymologies, and usage notes
  • Advanced search features
  • Ad free!

Dictionary Entries Near alum cake

Cite this Entry

“Alum cake.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/alum%20cake. Accessed 21 May. 2024.

Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!