non·pro·tein | \ ˌnän-ˈprō-ˌtēn 
, -ˈprō-tē-ən \
, -ˈprō-tē-ən \Definition of nonprotein
: not being or derived from protein
the nonprotein part of an enzyme nonprotein nitrogen
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nonprotein
adjectivenon·pro·tein | \ ˈnän-ˈprō-ˌtēn, -ˈprōt-ē-ən \
\Medical Definition of nonprotein
: not being or derived from protein
the nonprotein part of an enzyme
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The first known use of nonprotein was in 1926
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