casein plastic

noun

: any of certain tough hard hornlike substances obtained from powdered casein, usually rennet casein, with water as the usual plasticizer, hardened after molding by the action of formaldehyde or some other agent, and used chiefly in making buttons and buckles

Word History

First Known Use

1925, in the meaning defined above

Time Traveler
The first known use of casein plastic was in 1925

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 casein plastic

Cite this Entry

“Casein plastic.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/casein%20plastic. Accessed 31 Oct. 2024.

Love words? Need even more definitions?

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