mi·​cro·​bi·​ol·​o·​gy | \ˌmī-krō-bī-ˈä-lə-jē \

Definition of microbiology 

: a branch of biology dealing with microscopic forms of life

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Other Words from microbiology

microbiological \ -​ˌbī-​ə-​ˈlä-​ji-​kəl \ or less commonly microbiologic \ -​ˈlä-​jik \ adjective
microbiologically \ -​ji-​k(ə-​)lē \ adverb
microbiologist \ -​bī-​ˈä-​lə-​jist \ noun

Examples of microbiology in a Sentence

Recent Examples on the Web

His idea that microorganisms are necessary to good health, and that beneficial microbiota are pathogenic under the wrong conditions or in the wrong place, is now the standard view of researchers who study the microbiology of animals and plants. Jason Pontin, WIRED, "The 19th-Century Crank Who Tried to Tell Us About the Microbiome," 15 June 2018 Should every new arrival be checked, with skin and gut swabs and lab tests, as part of hospital admission? Screening won’t be a perfect defense, because clinical microbiology is struggling with this bug. Maryn Mckenna, WIRED, "The Strange and Curious Case of the Deadly Superbug Yeast," 13 July 2018 These canals are specifically designed to help catch water and irrigate the crops, Michael Doyle, Ph.D., regents professor of food microbiology at the University of Georgia’s Center for Food Safety, tells SELF. Korin Miller, SELF, "Officials Think They’ve Finally Found the Source of the Romaine Lettuce E. Coli Outbreak," 2 July 2018 According to Justin Sonnenburg, a professor of microbiology at Stanford University and the author of The Good Gut, our new emphasis on the functional importance of the microbiome is the product of three events. Jason Pontin, WIRED, "The 19th-Century Crank Who Tried to Tell Us About the Microbiome," 15 June 2018 But the key quality in his background may be an undergraduate degree in microbiology. Lawrence Toppman, charlotteobserver, "Mint Museum names new president and CEO," 12 July 2018 The students participated in science, technology, engineering, and mathematics (STEM) workshops, conducted experiments at the school’s microbiology lab, attended lecture and toured the facility. Adrianne Richardson, miamiherald, "MDC hosts Microbiology Girls Club with MAST Academy, Homestead students," 19 June 2018 My wife accepted a microbiology position a few weeks ago and then I was offered a teaching job and assistant football position at Moorhead High School. Richard Obert, azcentral, "Coach Spencer Stowers leaving defending state football champion Casteel," 11 June 2018 Something is missing from the fermentation, microbiology and enzyme labs: With robotic arms and other equipment performing repetitive measurements and other tasks, there are fewer technicians. Joseph N. Distefano, Philly.com, "DuPont spends $200M+ to create its future in historic Experimental Station," 18 June 2018

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

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Statistics for microbiology

Last Updated

11 Oct 2018

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Time Traveler for microbiology

The first known use of microbiology was in 1880

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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 \
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 \ also microbiologic \ -​ˈläj-​ik \ adjective
microbiological contamination microbiological research
microbiologically \ -​i-​k(ə-​)lē \ adverb
microbiologically safe water

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Comments on microbiology

What made you want to look up microbiology? Please tell us where you read or heard it (including the quote, if possible).


obstinately defiant of authority

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