What's the singular form of blennorrhea? Here's the word you're looking for.
Answer
The noun blennorrhea can be countable or uncountable.
The singular form of blennorrhea is also blennorrhea.
Examples
Infusion of leaves is employed against diarrhea and blennorrhea.
In the judgement of Guido Almansi, sexuality in the sonnets in Roman dialect is haunted by blennorrhea and eurotophobia, and is thus a wholly negative thing.