microbiology
Americannoun
noun
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Etymology
Origin of microbiology
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Explanation
Microbiology is the study of very small things, both living and nonliving. If you're fascinated by looking at tiny organisms through a microscope, you should take a class in microbiology. If your job involves microbiology, you're probably a microbiologist, a scientist who studies microorganisms and other microscopic things. Notice the prefix micro- in all of those words? It means "extremely small," from the Greek root mikros, "small or slight." Add this to biology, "the science of living things," and you get microbiology. This branch of science involves looking closely at fungi, viruses, parasites, bacteria, and other microbes.
Vocabulary lists containing microbiology
Words to Live By: Bio
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bio
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Microbiology - High School
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Example Sentences
Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.
British Columbia health officer Bonnie Henry said the person's test came back as a presumptive positive on Friday, meaning that it still remains to be confirmed by a national microbiology lab.
From BBC • May 16, 2026
“These viruses are also what are called ‘low incidence, high consequences,’” said Robert Cross, a hantavirus researcher and assistant professor of microbiology and immunology at the University of Texas Medical Branch at Galveston.
From MarketWatch • May 7, 2026
Thermo Fisher Scientific agreed to sell its microbiology business to European private-equity firm Astorg for about $1.075 billion.
From The Wall Street Journal • Apr. 27, 2026
Nineteen-year-old Reyhaneh, who is studying microbiology at the University of Tehran, also holds a photograph of the new supreme leader Mojtaba Khamenei.
From BBC • Apr. 23, 2026
In 1971 it was decided that one of the four microbiology experiments must be removed, and the Wolf Trap was off-loaded.
From "Cosmos" by Carl Sagan
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Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.