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Escherichia

British  
/ ˌɛʃəˈrɪkɪə /

noun

  1. a genus of Gram-negative rodlike bacteria that are found in the intestines of humans and many animals, esp E. coli , which is sometimes pathogenic and is widely used in genetic research

"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

Etymology

Origin of Escherichia

C19: named after Theodor Escherich (1857–1911), German paediatrician who first described E. coli

Example Sentences

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The microbe used by Stephen Wallace, professor of chemical biotechnology at the University of Edinburgh, was Escherichia coli, better known as E. coli.

From BBC Sep. 25, 2025

Water quality samples collected near the Camp Richardson Resort revealed elevated levels of Escherichia coli, commonly known as E. coli, according to the U.S.

From Los Angeles Times Aug. 2, 2025

The first stage was to establish a quality dataset of interactions between 403 diverse Escherichia coli strains and 96 phages.

From Science Daily Nov. 25, 2024

The prevalence of pathogenic E. coli has meant the frequent misidentification of a similar bacterium of the Escherichia genus.

From Science Daily May 23, 2024

In 1940, an experiment on the simplest of organisms—a microscopic, capsule-shaped, gut-dwelling bacterium named Escherichia coli—provided the first crucial clue to this question.

From "The Gene" by Siddhartha Mukherjee

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