met·ro·ni·da·zole

[me-truh-nahy-duh-zohl]
noun Pharmacology.
a synthetic antimicrobial substance, C 6 H 9 N 3 O 3 , used chiefly in the treatment of infections, such as Trichomonas vaginalis and certain anaerobic bacterial infections.

Origin:
1960–65; contraction of 2-methyl-5-nitroimidazole part of the chemical name

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Collins
World English Dictionary
metronidazole (ˌmɛtrəˈnaɪdəˌzəʊl) [Click for IPA pronunciation guide]
 
n
a pale yellow crystalline compound used to treat vaginal trichomoniasis. Formula: C6H9N3O3
 
[C20: from me(thyl) + (ni)tro- + -n- + (im)id(e) + azole]

Collins English Dictionary - Complete & Unabridged 10th Edition
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00:10
Metronidazole is always a great word to know.
So is doohickey. Does it mean:
a gadget; dingus; thingumbob.
a children's mummer's parade, as on the Fourth of July, with prizes for the best costumes.
American Heritage
Medical Dictionary

metronidazole me·tro·ni·da·zole (mět'rə-nī'də-zōl')
n.
A synthetic antimicrobial drug used in the treatment of vaginal trichomoniasis and intestinal amebiasis.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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Example sentences
The drug metronidazole, commonly used to treat intestinal parasites, is best avoided in the first trimester.
Other antibiotics that are sometimes used include tetracycline, metronidazole, and ciprofloxacin.
Antibiotics, usually ciprofloxacin or metronidazole, may be used to treat fistulas.
The antibiotic metronidazole is commonly used to cure the infection.
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