di·​gest·​er dī-ˈje-stər How to pronounce digester (audio)
: one that digests or makes a digest
: a vessel for digesting especially plant or animal materials

Example Sentences

Recent Examples on the Web At least 3,000 cows are needed to make an anaerobic digester financially viable, according to a 2018 study. Alessandra Bergamin, Discover Magazine, 11 Apr. 2021 In the absence of oxygen inside a digester, bacteria break down the compounds in sewage to create gaseous methane, which can be used to power gas stoves or converted to electricity. Discover Magazine, 29 Feb. 2012 Ultimately, the researchers found that tossing food into the anaerobic digester had lower environmental impacts than throwing the scraps into landfills or incinerators. Leslie Nemo, Discover Magazine, 17 Mar. 2021 In addition to a waste digester, the resort plans to install a biorefinery by the end of the year to transform leftover cooking oil into biodiesel. Maggie Hiufu Wong, CNN, 30 Oct. 2022 The food and yard waste is taken to a digester where it’s processed into methane gas that powers the trash trucks and produces a crop fertilizer by-product. Barbara Henry, San Diego Union-Tribune, 13 Oct. 2021 At the Bowenpally market, unsold vegetables are shredded into a pulp and passed into an anaerobic digester, where bacteria eat up the waste and emit methane and carbon dioxide gasses. Kavitha Yarlagadda, The Christian Science Monitor, 13 Oct. 2022 As one of the incentives for reducing methane emissions, the state’s Dairy Digester Research & Development Program covers a portion of the costs of a digester while dairy farmers would have to pay for the rest. Los Angeles Times, 16 Sep. 2022 The digester started operating there in December 2021. Jeff Kart, Forbes, 18 Aug. 2022 See More

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

Word History

First Known Use

1614, in the meaning defined at sense 1

Time Traveler
The first known use of digester was in 1614

Dictionary Entries Near digester

Cite this Entry

“Digester.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/digester. Accessed 7 Feb. 2023.

Medical Definition


di·​gest·​er -ˈjes-tər How to pronounce digester (audio)
: one that digests
: a medicine or an article of food that aids digestion
also digestor : a vessel or apparatus for digesting
Last Updated: - Updated example sentences
Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!

The Great British Vocabulary Quiz

  • union jack speech bubble
  • Named after Sir Robert Peel, what are British police called?
Spell It

Hear a word and type it out. How many can you get right?

Solve today's spelling word game by finding as many words as you can with using just 7 letters. Longer words score more points.

Can you make 12 words with 7 letters?