intrinsic factor

noun

Definition of intrinsic factor

: a substance produced by normal gastrointestinal mucosa that facilitates absorption of vitamin B12

First Known Use of intrinsic factor

1932, in the meaning defined above

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The first known use of intrinsic factor was in 1932

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Dictionary Entries Near intrinsic factor

intrinsically

intrinsic factor

in triplicate

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Cite this Entry

“Intrinsic factor.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/intrinsic%20factor. Accessed 25 Oct. 2021.

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More Definitions for intrinsic factor

intrinsic factor

noun

Medical Definition of intrinsic factor

: a substance produced by the normal gastrointestinal mucosa that facilitates absorption of vitamin B12

More from Merriam-Webster on intrinsic factor

Britannica.com: Encyclopedia article about intrinsic factor

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