: having two functions
especially : difunctional

Word History

First Known Use

1893, in the meaning defined above

Time Traveler
The first known use of bifunctional was in 1893

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Cite this Entry

“Bifunctional.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/bifunctional. Accessed 10 Jul. 2026.

Medical Definition

bifunctional

adjective
: having two functions
bifunctional reagents
bifunctional neurons
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