phage

1 of 2

noun

plural phages also phage
: a virus that infects bacteria : bacteriophage
They cloned the antibody genes and inserted them into phage, a virus that infects bacteria cells.Teresa L. White
Bacteriophages, also known simply as phages, came to light around 90 years ago, when two European scientists independently discovered that there are viruses that kill bacteria.John Travis

-phage

2 of 2

noun combining form

: virus or cell that destroys cells
bacteriophage
microphage

Examples of phage in a Sentence

Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
Noun
When patients are treated with phages in emergency use situations, phages are usually grown and purified in academic or university laboratories, not sterile drug manufacturing sites. Jess Craig, Vox, 1 Oct. 2024 Locus’s therapy is actually a cocktail of six phages. Emily Mullin, WIRED, 10 Sep. 2024 Finding the right phage for treatment can take time, and then batches of phages need to be grown and purified. Emily Mullin, WIRED, 10 Sep. 2024 Each tiny, tripod-looking phage has evolved to hunt, attack and gobble up a specific bacterial species. Issy Ronald, CNN, 9 Oct. 2024 See all Example Sentences for phage 

Word History

Etymology

Noun

by shortening

Noun combining form

Greek -phagos one that eats, from -phagos -phagous

First Known Use

Noun

1920, in the meaning defined above

Time Traveler
The first known use of phage was in 1920

Dictionary Entries Near phage

Cite this Entry

“Phage.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/phage. Accessed 30 Nov. 2024.

Kids Definition

phage

noun
ˈfāj How to pronounce phage (audio)
 also  ˈfäzh

Medical Definition

phage

noun
plural phages also phage
: a virus that infects bacteria : bacteriophage
To infect a host bacterium, a phage will first interact with receptors on the host cell, adsorb and then inject its genome.George P. C. Salmond and Peter C. Fineran, Nature Reviews Microbiology
Phages have various possible life cycles which, along with interaction with their physical environment, dictate their role in bacterial/archaeal biology.Martha R. J. Clokie et al., Bacteriophage

More from Merriam-Webster on phage

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