digester: meaning, definition, pronunciation and examples

C2/Rare
UK/daɪˈdʒɛstə/US/daɪˈdʒɛstər/

Technical/Formal

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Quick answer

What does “digester” mean?

A container, tank, or apparatus in which organic material is biologically or chemically broken down.

Audio

Pronunciation

Definition

Meaning and Definition

A container, tank, or apparatus in which organic material is biologically or chemically broken down.

A person or thing that digests, summarises, or processes information. Historically, a comprehensive summary or compilation, especially of laws.

Dialectal Variation

British vs American Usage

Differences

No significant difference in meaning. Both use the term for the technical apparatus.

Connotations

Neutral technical term in both varieties.

Frequency

Equally rare and technical in both BrE and AmE.

Grammar

How to Use “digester” in a Sentence

The [noun] digester processes [material]A digester for [purpose/material]

Vocabulary

Collocations

strong
anaerobic digestersewage digestersludge digesterbiogas digesterindustrial digester
medium
heated digesterlarge digesterwaste digesteroperate a digesterfeed the digester
weak
patent digestermechanical digesterchemical digesterpaper digester

Usage

Meaning in Context

Business

Rare, used in sectors like waste management, renewable energy, or pulp/paper manufacturing.

Academic

Used in environmental science, chemical engineering, and biology papers.

Everyday

Virtually never used in casual conversation.

Technical

The primary register. Specific to processes like anaerobic digestion, wastewater treatment, and paper pulping.

Vocabulary

Synonyms of “digester”

Strong

bioreactorfermentation tankdecomposition chamber

Neutral

processorreactortreatment unitcomposter (for aerobic processes)

Vocabulary

Antonyms of “digester”

Watch out

Common Mistakes When Using “digester”

  • Using 'digester' to mean a person on a diet (use 'someone with good digestion').
  • Confusing it with 'digest' the verb or the noun meaning summary.

FAQ

Frequently Asked Questions

No, it is a specialised technical term mostly used in engineering, waste management, and industrial contexts.

Historically, yes, but this usage is now archaic. Today it almost exclusively refers to a machine or container.

A composter typically refers to an aerobic (with oxygen) decomposition system, often for garden waste. A digester, especially an anaerobic one, is a sealed, controlled environment for breaking down wet, organic material to produce biogas.

The stress is on the second syllable: dye-JEST-er (US) / dye-JEST-uh (UK).

A container, tank, or apparatus in which organic material is biologically or chemically broken down.

Digester is usually technical/formal in register.

Learning

Memory Aids

Mnemonic

Think: 'It DIGESTS waste, so it's a DIGESTER'.

Conceptual Metaphor

CONTAINER AS A STOMACH (e.g., 'The city's digester is like a giant stomach for sewage').

Practice

Quiz

Fill in the gap
The new at the treatment plant can process 100 tonnes of organic waste daily.
Multiple Choice

In which field is the term 'digester' MOST commonly used?