cofactor

noun
co·​fac·​tor | \ ˈkō-ˌfak-tər How to pronounce cofactor (audio) \

Definition of cofactor

1 : the signed minor of an element of a square matrix or of a determinant with the sign positive if the sum of the column number and row number of the element is even and with the sign negative if it is odd
2 : a substance that acts with another substance to bring about certain effects especially : coenzyme
3 : something (such as diet or a virus) that acts with or aids another factor in causing disease

Examples of cofactor in a Sentence

Recent Examples on the Web Cells in our body and skin need niacinamide to make cofactors necessary for keeping cells functioning properly and for carrying out various processes that occur in our body (like metabolism and damage repair). Danusia Wnek, Good Housekeeping, "Everything You Need to Know About Niacinamide, According to Skincare Pros," 28 Apr. 2020 Normally, the enzyme gets its electrons from an iron-containing cofactor. John Timmer, Ars Technica, "Photovoltaic… enzymes?," 19 Dec. 2019 The vampire bat microbiome helps with the nutritional aspect of blood sucking by aiding with carbohydrate metabolism and synthesizing essential cofactors and vitamins lacking in blood. Diana Gitig, Ars Technica, "Gut bacteria key to the vampire bat’s ability to survive on blood," 1 Mar. 2018

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'cofactor.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

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First Known Use of cofactor

1885, in the meaning defined at sense 1

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The first known use of cofactor was in 1885

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Cite this Entry

“Cofactor.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/cofactor. Accessed 13 Jul. 2020.

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More Definitions for cofactor

cofactor

noun
co·​fac·​tor | \ ˈkō-ˌfak-tər How to pronounce cofactor (audio) \

Medical Definition of cofactor

1 : a substance that acts with another substance to bring about certain effects especially : coenzyme
2 : something (as a diet or virus) that acts with or aids another factor in causing disease Infection with the HPV virus is an important cofactor in cervical cancer, but very few people infected with HPV will ever get cervical cancer.— Elissa Mendenhall, Mothering, May/June 2007

More from Merriam-Webster on cofactor

Rhyming Dictionary: Words that rhyme with cofactor

Britannica.com: Encyclopedia article about cofactor

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