zein

noun

ze·​in ˈzē-ən How to pronounce zein (audio)
: a protein from corn that lacks lysine and tryptophan and is used especially in making textile fibers, plastics, printing inks, coatings, and adhesives and sizes

Examples of zein in a Sentence

Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
To this end, the team decided to look at corn protein called zein as a potential alternative. Christopher McFadden, Interesting Engineering, 23 May 2026

Word History

Etymology

New Latin Zea, genus of grasses including corn, from Greek zeai, plural, wheat; akin to Sanskrit yava barley

First Known Use

1820, in the meaning defined above

Time Traveler
The first known use of zein was in 1820

Browse Nearby Words

Cite this Entry

“Zein.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/zein. Accessed 29 May. 2026.

Medical Definition

zein

noun
ze·​in ˈzē-ən How to pronounce zein (audio)
: a protein from Indian corn that lacks lysine and tryptophan

More from Merriam-Webster on zein

Love words? Need even more definitions?

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

More from Merriam-Webster