gas thermometer: meaning, definition, pronunciation and examples
C1Technical/Scientific
Quick answer
What does “gas thermometer” mean?
A scientific instrument for measuring temperature that utilizes the expansion or pressure change of a confined gas as its principle of operation.
Audio
Pronunciation
Definition
Meaning and Definition
A scientific instrument for measuring temperature that utilizes the expansion or pressure change of a confined gas as its principle of operation.
While "thermometer" can be used broadly, the term "gas thermometer" specifically denotes a precise, often laboratory-grade, instrument used in metrology and fundamental physics for establishing temperature scales and calibrating other thermometers.
Dialectal Variation
British vs American Usage
Differences
No significant lexical differences. The core term and its function are identical across both dialects.
Connotations
In both dialects, the term carries strong connotations of scientific precision, laboratory equipment, and fundamental metrology.
Frequency
Equally rare in everyday speech in both the UK and US. Its usage is confined almost entirely to physics, engineering, and metrology contexts.
Grammar
How to Use “gas thermometer” in a Sentence
The [helium] gas thermometer is used to [establish the temperature scale].We measured the temperature [with/using] a constant-volume gas thermometer.Vocabulary
Collocations
Examples
Examples of “gas thermometer” in a Sentence
verb
British English
- [No standard verbal form. One might say] 'The apparatus was gas-thermometered for calibration.' (highly contrived/technical).
American English
- [No standard verbal form.]
adverb
British English
- [No standard adverbial form.]
American English
- [No standard adverbial form.]
adjective
British English
- The gas-thermometer readings provided the primary standard.
- We followed the gas-thermometer calibration procedure.
American English
- The gas thermometer measurements were the most accurate.
- It's a gas thermometer principle.
Usage
Meaning in Context
Business
Extremely rare. Might appear in procurement for scientific equipment.
Academic
Common in physics and engineering textbooks, journal articles, and lab manuals discussing temperature measurement principles and calibration.
Everyday
Virtually never used. In everyday contexts, people simply say 'thermometer'.
Technical
The primary domain of use. Refers to a specific class of high-accuracy thermometers based on gas laws.
Vocabulary
Synonyms of “gas thermometer”
Strong
Neutral
Weak
Vocabulary
Antonyms of “gas thermometer”
Watch out
Common Mistakes When Using “gas thermometer”
- Using 'gas thermometer' to refer to any thermometer (e.g., a digital one).
- Confusing it with a 'gas meter', which measures gas flow, not temperature.
- Misspelling as 'gas termometer'.
FAQ
Frequently Asked Questions
No. 'Gas thermometer' refers to a specific, highly precise type used in science and calibration. A regular household or medical thermometer is usually a different type (like liquid-in-glass or digital).
Helium or nitrogen are commonly used because they behave nearly like an 'ideal gas' over a wide temperature range, which simplifies the calculations and improves accuracy.
Gas thermometers are used to define temperature scales and calibrate other thermometers (including digital ones) due to their extreme precision and foundation in fundamental physical laws (gas laws).
No, they are specialized, often bulky, laboratory instruments. They are not designed for, nor practical for, everyday home use.
A scientific instrument for measuring temperature that utilizes the expansion or pressure change of a confined gas as its principle of operation.
Gas thermometer is usually technical/scientific in register.
Gas thermometer: in British English it is pronounced /ˈɡæs θəˈmɒmɪtə/, and in American English it is pronounced /ˈɡæs θərˈmɑːmɪtər/. Tap the audio buttons above to hear it.
Phrases
Idioms & Phrases
- “[No common idioms exist for this specific technical term]”
Learning
Memory Aids
Mnemonic
Think: GAS expands with heat. A GAS THERMOMETER measures how much it expands or how much pressure builds up.
Conceptual Metaphor
TEMPERATURE IS PRESSURE / TEMPERATURE IS VOLUME (The abstract concept of temperature is understood and measured through the concrete physical changes - pressure or volume - of a confined gas).
Practice
Quiz
In which context are you LEAST likely to encounter the term 'gas thermometer'?