intrinsic factor

noun

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

Word History

First Known Use

1932, in the meaning defined above

Time Traveler
The first known use of intrinsic factor was in 1932

Dictionary Entries Near intrinsic factor

Cite this Entry

“Intrinsic factor.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/intrinsic%20factor. Accessed 1 Apr. 2023.

Medical Definition

intrinsic factor

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

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