phenanthridinium
noun
phe·nan·thri·din·i·um
fi-ˌnan(t)-thrə-ˈdin-ē-əm 
: the ion [C13H9NH]+ derived from phenanthridine and occurring in substituted form in quaternary salts used as trypanocides
Cite this Entry
“Phenanthridinium.” Merriam-Webster.com Medical Dictionary, Merriam-Webster, https://www.merriam-webster.com/medical/phenanthridinium. Accessed 31 Oct. 2025.
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