: folate
Folate—also called folacin …—is one of the B vitamins. … Abundant in green vegetables, beans, some fruits and wheat germ, folate is essential to the healthy division of cells and thus to fertility and healthy offspring.UC Berkeley Wellness Letter

Word History

Etymology

folic acid + -in

First Known Use

1949, in the meaning defined above

Time Traveler
The first known use of folacin was in 1949

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Cite this Entry

“Folacin.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/folacin. Accessed 28 Aug. 2026.

Kids Definition

Medical Definition

: folate
… the folacin in food is part of a complex compound that must be broken down by the body, and its bioavailability … ranges from 25% to 75%. In contrast the folic acid used for fortification and in supplements is almost entirely absorbed.UC Berkeley Wellness Letter

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