Dictionary.com
Thesaurus.com
Showing results for microbiology. Search instead for microangiology.

microbiology

American  
[mahy-kroh-bahy-ol-uh-jee] / ˌmaɪ kroʊ baɪˈɒl ə dʒi /

noun

  1. the branch of biology dealing with the structure, function, uses, and modes of existence of microscopic organisms.


microbiology British  
/ ˌmaɪkrəʊˌbaɪəˈlɒdʒɪkəl, ˌmaɪkrəʊbaɪˈɒlədʒɪ /

noun

  1. the branch of biology involving the study of microorganisms

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

microbiology Scientific  
/ mī′krō-bī-ŏlə-jē /
  1. The scientific study of microorganisms.


Other Word Forms

Etymology

Origin of microbiology

First recorded in 1885–90; micro- + biology

Compare meaning

How does microbiology compare to similar and commonly confused words? Explore the most common comparisons:

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.

Keep Reading on Vocabulary.com

Vocabulary lists containing microbiology

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.

See Examples For:

Study co-author Dr Chris Williamson, associate professor in polar microbiology, emphasised that this "hidden diversity" highlights that further samples are needed.

From BBC Jun. 30, 2026

After reading “Microbe Hunters,” Paul de Kruif’s popular 1926 account of pioneers in microbiology, Sabin found his calling.

From The Wall Street Journal Jun. 21, 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 TMO 0.07%increase; green up pointing triangle Scientific has struck a deal to sell its microbiology business to European private-equity firm Astorg for about $1.075 billion.

From The Wall Street Journal Apr. 27, 2026

Positive results in Martian microbiology were achieved in seven different samplings in two locales on Mars separated by 5,000 kilometers.

From "Cosmos" by Carl Sagan

Vocabulary.com logo
by dictionary.com

Join 12,000,000 vocabulary learners

Start learning new words today on VocabTrainer.
You'll remember them forever.

Start training