mi·​cro·​bi·​ol·​o·​gy | \ ˌmī-krō-bī-ˈä-lə-jē How to pronounce microbiology (audio) \

Definition of microbiology

: a branch of biology dealing with microscopic forms of life

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Other Words from microbiology

microbiological \ ˌmī-​krō-​ˌbī-​ə-​ˈlä-​ji-​kəl How to pronounce microbiology (audio) \ or less commonly microbiologic \ ˌmī-​krō-​ˌbī-​ə-​ˈlä-​jik How to pronounce microbiology (audio) \ adjective
microbiologically \ ˌmī-​krō-​ˌbī-​ə-​ˈlä-​ji-​k(ə-​)lē How to pronounce microbiology (audio) \ adverb
microbiologist \ ˌmī-​krō-​bī-​ˈä-​lə-​jist How to pronounce microbiology (audio) \ noun

Examples of microbiology in a Sentence

Recent Examples on the Web Some people have incorrectly concluded that means that those vaccines offer only six months of protection, says Scott Hensley, a professor of microbiology at the University of Pennsylvania. Sumathi Reddy, WSJ, "How Long Do Covid-19 Vaccines Provide Immunity?," 12 Apr. 2021 One of the best commentaries on COVID-19 surface transmission was published in the journal Lancet Infectious Diseases in July 2020 by Emanuel Goldman, a professor of microbiology from the US. Popular Science, "Why are we still disinfecting surfaces to stop COVID-19?," 24 Feb. 2021 An associate professor of microbiology at the University of Pennsylvania, Hensley and colleagues were working to develop Covid-19 antibody tests in the early days of the pandemic. Helen Branswell, STAT, "Next-generation Covid-19 vaccines are supposed to be better. Some experts worry they could be worse," 19 Apr. 2021 Aside from vaccine effectiveness and longevity, John Moore, a professor of microbiology and immunology at Weill Cornell Medicine, said there is the issue of virus variants. Washington Post, "Why you shouldn’t skip your second dose of the coronavirus vaccine," 15 Apr. 2021 Paula Cannon, a professor of molecular microbiology and immunology at the Keck School of Medicine at USC, agreed. Hayley Smith, Los Angeles Times, "California is dramatically reopening despite warnings of a spring COVID-19 wave. How big is the risk?," 31 Mar. 2021 The narrow window for use may be the biggest issue, said Dr. Arturo Casadevall, chair of the department of molecular microbiology and immunology at the Johns Hopkins Bloomberg School of Public Health who has been studying antibodies. Meredith Cohn, baltimoresun.com, "There’s an early treatment for COVID now — and Maryland officials are pushing to spread the word and keep people out of hospitals," 26 Mar. 2021 Those particles are more likely to hang in the air longer and are easier to inhale deep into the lungs, said Roy, a professor of microbiology and immunology at Tulane University School of Medicine. Christina Jewett, CNN, "Cough more hazardous to Covid-19 medical workers than intubation, research suggests," 12 Mar. 2021 Mark Slifka, a professor of microbiology and immunology at Oregon Health and Science University, wouldn’t say specifically when the U.S. would return to normal but did say that the U.S. will get there quickly if the vaccines do prevent infection. David Hogberg, Washington Examiner, "Optimism about return to normal grows following vaccine news," 25 Feb. 2021

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'microbiology.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

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First Known Use of microbiology

1880, in the meaning defined above

History and Etymology for microbiology

International Scientific Vocabulary

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Time Traveler for microbiology

Time Traveler

The first known use of microbiology was in 1880

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Statistics for microbiology

Last Updated

4 May 2021

Cite this Entry

“Microbiology.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/microbiology. Accessed 6 May. 2021.

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More Definitions for microbiology



English Language Learners Definition of microbiology

: a science that studies extremely small forms of life (such as bacteria and viruses)


mi·​cro·​bi·​ol·​o·​gy | \ ˌmī-krō-bī-ˈäl-ə-jē How to pronounce microbiology (audio) \
plural microbiologies

Medical Definition of microbiology

: a branch of biology dealing especially with microorganisms (as bacteria and protozoans)

Other Words from microbiology

microbiological \ ˈmī-​krō-​ˌbī-​ə-​ˈläj-​i-​kəl How to pronounce microbiology (audio) \ also microbiologic \ -​ˈläj-​ik How to pronounce microbiology (audio) \ adjective
microbiological contamination microbiological research
microbiologically \ -​i-​k(ə-​)lē How to pronounce microbiology (audio) \ adverb
microbiologically safe water

More from Merriam-Webster on microbiology

Nglish: Translation of microbiology for Spanish Speakers

Britannica.com: Encyclopedia article about microbiology

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