nonprotein

adjective

non·​pro·​tein ˌnän-ˈprō-ˌtēn How to pronounce nonprotein (audio)
-ˈprō-tē-ən
: not being or derived from protein
the nonprotein part of an enzyme
nonprotein nitrogen

Word History

First Known Use

1926, in the meaning defined above

Time Traveler
The first known use of nonprotein was in 1926

Dictionary Entries Near nonprotein

non prosequitur

nonprotein

nonproven

See More Nearby Entries 

Cite this Entry

“Nonprotein.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/nonprotein. Accessed 18 Apr. 2024.

Copy Citation

Share

Kids Definition

nonprotein

adjective
non·​pro·​tein -ˈprōˌtēn How to pronounce nonprotein (audio)
-ˈprōt-ē-ən
: not being or derived from protein
the nonprotein part of an enzyme
nonprotein nitrogen

Medical Definition

nonprotein

adjective
non·​pro·​tein ˈnän-ˈprō-ˌtēn, -ˈprōt-ē-ən How to pronounce nonprotein (audio)
: not being or derived from protein
the nonprotein part of an enzyme
Love words? Need even more definitions?

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

Popular in Grammar & Usage

See All

Your vs. You're: How to Use Them Correctly

Every Letter Is Silent, Sometimes: A-Z List of Examples

More Commonly Mispronounced Words

How to Use Em Dashes (—), En Dashes (–) , and Hyphens (-)

Absent Letters That Are Heard Anyway
See All

Popular in Wordplay

See All

10 Words from Taylor Swift Songs (Merriam's Version)

A Great Big List of Bread Words

The Words of the Week - Apr. 12

10 Scrabble Words Without Any Vowels

12 More Bird Names that Sound Like Insults (and Sometimes Are)
See All

Games & Quizzes

See All
Play Quordle: Guess all four words in a limited number of tries. Each of your guesses must be a real 5-letter word.
Quordle Can you solve 4 words at once?
Play Blossom: Solve today's spelling word game by finding as many words as you can using just 7 letters. Longer words score more points.
Blossom Word Game You can make only 12 words. Pick the best ones!
Play Missing Letter: a crossword with a twist. Each of the 25 puzzle words start with a different letter of the alphabet. Which letter is missing?
Missing Letter A crossword with a twist
winning words from the national spelling bee logo
Spelling Bee Quiz Can you outdo past winners of the National Spelli...