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

See more words from the same year

Cite this Entry

Style

“Casein plastic.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/casein%20plastic. Accessed 30 Nov. 2024.

Copy Citation