trisubstituted

adjective

tri·sub·sti·tut·ed ˈtrī-ˈsəb-stə-ˌtü-təd

-ˌtyü-

: having three substituent atoms or groups in the molecule

Word History

First Known Use

circa 1899, in the meaning defined above

Time Traveler

The first known use of trisubstituted was circa 1899

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Browse Nearby Words

tristylous

trisubstituted

trisul

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Cite this Entry

Style

“Trisubstituted.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/trisubstituted. Accessed 3 Nov. 2025.

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Medical Definition

trisubstituted

adjective

tri·sub·sti·tut·ed ˈtrī-ˈsəb-stə-ˌt(y)üt-əd

: having three substituent atoms or groups in the molecule

a trisubstituted amine

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