nonprotein
adjective
non·pro·tein
ˌnän-ˈprō-ˌtēn 
-ˈprō-tē-ən
: not being or derived from protein
the nonprotein part of an enzyme
nonprotein nitrogen
Cite this Entry
“Nonprotein.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/nonprotein. Accessed 4 Nov. 2025.
Copy CitationKids Definition
nonprotein
adjective
non·pro·tein
-ˈprōˌtēn
-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
: not being or derived from protein
the nonprotein part of an enzyme
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