pron·to·sil
| \ ˈprän-tə-ˌsil
\
\
Medical Definition of prontosil
: any of three sulfonamide drugs:
a
: a red azo dye C12H13N5O2S that was the first sulfa drug tested clinically
— called also prontosil rubrum
b
: sulfanilamide
c
: azosulfamide
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“Prontosil.” Merriam-Webster.com Medical Dictionary, Merriam-Webster, https://www.merriam-webster.com/medical/prontosil. Accessed 24 Jul. 2021.
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