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decomposer

American  
[dee-kuhm-poh-zer] / ˌdi kəmˈpoʊ zər /

noun

  1. a person or thing that decomposes.

  2. Ecology. an organism, usually a bacterium or fungus, that breaks down the cells of dead plants and animals into simpler substances.


decomposer British  
/ ˌdiːkəmˈpəʊzə /

noun

  1. ecology any organism in a community, such as a bacterium or fungus, that breaks down dead tissue enabling the constituents to be recycled to the environment See also consumer producer

"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

decomposer Scientific  
/ dē′kəm-pōzər /

Etymology

Origin of decomposer

First recorded in 1815–25; decompose + -er 1

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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.

They’re not the only fungus that changes from harmless decomposer to predator.

From National Geographic • Dec. 12, 2023

Payment comes either in the form of carbon from the host while it is living, or when their friendly host dies, and the patient decomposer gets to work.

From Science Daily • Oct. 23, 2023

It's a beautiful little wood decomposer that usually shows up in October, November.

From Scientific American • Jan. 26, 2023

He and others suggest finding a way to enhance decomposer diversity may buffer against the negative effects of climate change.

From Science Magazine • May 11, 2022

A mushroom is one example of a decomposer.

From Textbooks • Jan. 1, 2018