metronidazole
noun
met·ro·ni·da·zole
ˌme-trə-ˈnī-də-ˌzōl 
: a drug C6H9N3O3 used especially to treat vaginal trichomoniasis, amebiasis, and infections by anaerobic bacteria
Examples of metronidazole in a Sentence
Recent Examples on the Web
For example, metronidazole is the typical treatment for giardiasis.
—
Bruce Y. Lee, Forbes.com, 29 July 2025
Some antibiotics used include ciprofloxacin, norfloxacin, metronidazole, and rifaximin.1 Other treatments may include:
Probiotics (live beneficial bacteria): Probiotics are a potential treatment, but there is a lack of evidence on their effects on SIBO.
—Amber J. Tresca, Verywell Health, 16 May 2025
Depending on the infection and the clinic, you might be given the option of oral or vaginal antibiotics (often, clindamycin or metronidazole) to treat BV.
—Mara Santilli, SELF, 21 Mar. 2024
One option is metronidazole, which comes in a gel or a cream.
—Cindy Kuzma, Health, 16 Mar. 2024
Kondo thinks metronidazole, also called MZ, could be an attractive tool.
—Isabella Cueto, STAT, 14 June 2023
Examples are automatically compiled from online sources to
show current usage.
Read More
Opinions expressed in the examples do not represent those of Merriam-Webster or its editors.
Send us feedback.
Bruce Y. Lee, Forbes.com, 29 July 2025
Some antibiotics used include ciprofloxacin, norfloxacin, metronidazole, and rifaximin.1 Other treatments may include:
Probiotics (live beneficial bacteria): Probiotics are a potential treatment, but there is a lack of evidence on their effects on SIBO.
—Amber J. Tresca, Verywell Health, 16 May 2025
Depending on the infection and the clinic, you might be given the option of oral or vaginal antibiotics (often, clindamycin or metronidazole) to treat BV.
—Mara Santilli, SELF, 21 Mar. 2024
One option is metronidazole, which comes in a gel or a cream.
—Cindy Kuzma, Health, 16 Mar. 2024
Kondo thinks metronidazole, also called MZ, could be an attractive tool.
—Isabella Cueto, STAT, 14 June 2023
Cite this Entry
“Metronidazole.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/metronidazole. Accessed 4 Nov. 2025.
Copy CitationMedical Definition
metronidazole
noun
met·ro·ni·da·zole
ˌme-trə-ˈnīd-ə-ˌzōl
: an antiprotozoal and antibacterial drug C6H9N3O3 used especially to treat vaginal trichomoniasis, amebiasis, and infections by anaerobic bacteria see flagyl
Love words? Need even more definitions?
Merriam-Webster unabridged
Share