Coenzyme

noun

Definitions

Noun
  1. 1
    Any small molecule that is necessary for the functioning of an enzyme.

    "A coenzyme that exists in all living cells, NAD+ plays a central role in the body’s biological processes, such as regulating cellular energy, increasing insulin sensitivity and reversing mitochondrial dysfunction."

  2. 2
    a small molecule (not a protein but sometimes a vitamin) essential for the activity of some enzymes wordnet

Etymology

From co- + enzyme.

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