Meaning & use
decomposer
Last updated
Meaning
nouncountabletechnicalbiology
A living thing, such as a fungus or bacterium, that breaks down dead plants and animals into simpler substances.
Grammar: Countable: you can say a decomposer, decomposers. Used especially in ecology.
Patterns
- decomposers in the soil
- act as a decomposer
- a decomposer such as a fungus
Bacteria and fungi are the main decomposers in most ecosystems.
Without decomposers, dead leaves and animals would pile up.
A decomposer feeds on dead material and returns nutrients to the soil.
Word forms
| plural | decomposers |
|---|
Common combinations
- act as a decomposer
- Certain insects act as decomposers by eating dead wood.
- decomposers in the soil
- Decomposers in the soil break down fallen leaves.
- a decomposer such as a fungus
- A decomposer such as a fungus can digest tough plant material.
- the role of decomposers
- The role of decomposers is to recycle nutrients.
- primary decomposer
- This beetle is a primary decomposer in the forest.
Synonyms and how they differ
- saprophyte
- A more technical term for an organism that feeds on dead matter; decomposer is the general word used in school ecology.
- detritivore
- An animal that eats dead material, such as a worm; decomposers include bacteria and fungi that break material down chemically.
Word family
- decompose verb
- To break down or rot.
- decomposition noun
- The process of breaking down or rotting.
- decomposable adjective
- Able to be broken down.
Commonly confused: decomposer or producer? decomposer or consumer?
decomposer vs producer
A producer makes its own food (like a plant); a decomposer breaks down dead material.
decomposer vs consumer
A consumer eats other living things; a decomposer feeds on dead remains.
Practice
Which sentence uses 'decomposer' correctly?
Choose one answer.
A decomposer breaks down dead material; that is its role in an ecosystem. Option 1 describes a producer, and option 2 describes a predator or consumer.
Make it your own
Write a sentence using “decomposer”, then check it and compare it with the examples above.