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cofactor

The English word “cofactor” has 5 meanings listed here.

noun

  1. A contributing factor.
  2. A substance, especially a coenzyme or a metal, that must be present for an enzyme to function.
  3. A molecule that binds to and regulates the activity of a protein.
  4. The result of a number being divided by one of its factors.
  5. The signed determinant of the submatrix produced by removing the row and column containing a specified element; primarily used in the recursive definition and calculation of the determinant of a matrix.

Etymology

From co- + factor.

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Definitions are from Wiktionary, extracted by Kaikki.org, and are available under the CC BY-SA 4.0 licence.