mesophile: meaning, definition, pronunciation and examples

C2/Technical
UK/ˈmɛsə(ʊ)fʌɪl/US/ˈmɛsəˌfaɪl/

Technical/Scientific

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Quick answer

What does “mesophile” mean?

An organism that thrives in moderate temperatures, typically between 20°C and 45°C.

Audio

Pronunciation

Definition

Meaning and Definition

An organism that thrives in moderate temperatures, typically between 20°C and 45°C.

A term primarily used in biology and microbiology to categorize microorganisms based on their optimal temperature range for growth, distinguishing them from psychrophiles (cold-loving) and thermophiles (heat-loving). The term is also used metaphorically to describe a person or entity that prefers moderate or temperate conditions.

Dialectal Variation

British vs American Usage

Differences

No significant spelling or usage differences. Both dialects use the term strictly within scientific contexts.

Connotations

Purely scientific and neutral in both dialects.

Frequency

Extremely low frequency in general language, used almost exclusively in microbiology, food science, and related academic/technical fields in both regions.

Grammar

How to Use “mesophile” in a Sentence

[The/An/A] mesophile [verb e.g., grows, thrives, survives] [prepositional phrase e.g., at room temperature, in the human body].

Vocabulary

Collocations

strong
obligate mesophilefacultative mesophilebacterial mesophilegrowth of mesophilesmesophile organism
medium
common mesophiletypical mesophilerange for mesophilesisolate mesophiles
weak
various mesophilescertain mesophilesstudy mesophiles

Examples

Examples of “mesophile” in a Sentence

verb

British English

  • The bacteria will mesophilise under these conditions. (Note: very rare/coined derivative)

American English

  • The culture was observed to mesophilize at 37°C. (Note: very rare/coined derivative)

adverb

British English

  • The sample grew mesophilically. (Note: extremely rare)

American English

  • The organism reproduces mesophilically. (Note: extremely rare)

adjective

British English

  • The mesophilic phase of compost production is crucial for pathogen reduction.

Usage

Meaning in Context

Business

Very rare; potentially in biotechnology, pharmaceutical, or food safety reports.

Academic

Common in microbiology, biology, and environmental science textbooks and research papers.

Everyday

Almost never used.

Technical

The primary domain of use, especially in lab reports, industrial microbiology, and scientific classification.

Vocabulary

Synonyms of “mesophile”

Neutral

moderate-temperature organismmoderate thermophile

Weak

warm-temperate organism

Vocabulary

Antonyms of “mesophile”

Watch out

Common Mistakes When Using “mesophile”

  • Mispronouncing it as /ˈmiːzəfaɪl/ or /ˈmɛsoʊfaɪl/.
  • Confusing it with 'mesophyll' (plant tissue).
  • Using it outside of a scientific context, leading to confusion.

FAQ

Frequently Asked Questions

No, it is a highly specialized scientific term used almost exclusively in microbiology and related fields.

A mesophile thrives in moderate temperatures (20-45°C), while a thermophile thrives in high temperatures, often above 45°C, sometimes in extreme heat.

Only in a metaphorical or humorous sense, e.g., 'I'm a mesophile, I can't stand the extreme cold or heat.' In strict scientific terms, it applies to microorganisms.

The direct opposite in terms of temperature preference is a psychrophile (cold-loving) or a thermophile (heat-loving). Both are types of extremophiles.

An organism that thrives in moderate temperatures, typically between 20°C and 45°C.

Mesophile is usually technical/scientific in register.

Mesophile: in British English it is pronounced /ˈmɛsə(ʊ)fʌɪl/, and in American English it is pronounced /ˈmɛsəˌfaɪl/. Tap the audio buttons above to hear it.

Learning

Memory Aids

Mnemonic

Think of 'MESO' as in 'middle' (like Mesopotamia, the land between two rivers) and 'PHILE' as 'lover of'. A mesophile loves middling, moderate temperatures.

Conceptual Metaphor

TEMPERATURE PREFERENCE IS AFFECTION (The organism is a 'lover' of medium temperatures).

Practice

Quiz

Fill in the gap
Because they grow optimally between 20°C and 45°C, common food-spoilage bacteria are classified as .
Multiple Choice

A mesophile is most likely to be found thriving in which environment?