dasymeter
Extremely LowTechnical/Scientific
Definition
Meaning
An instrument for measuring the density of gases.
A rare scientific device, typically consisting of a weighted bulb or float, used in physics and chemistry to determine the relative density of a gas by observing its buoyancy effect.
Linguistics
Semantic Notes
This is a highly specialized term from 19th-century experimental physics. Its meaning is precise and does not extend metaphorically. It is not synonymous with general gas measurement devices like manometers or barometers.
Dialectal Variation
British vs American Usage
Differences
No differences in meaning or usage. The term is equally obscure in both varieties.
Connotations
Purely historical or highly technical. Suggests a context of vintage laboratory equipment or precise gas analysis.
Frequency
Virtually never used in modern discourse outside historical or very niche technical discussions.
Vocabulary
Collocations
Grammar
Valency Patterns
The dasymeter measured [GAS DENSITY]Using a dasymeter, they determined [PROPERTY]Vocabulary
Synonyms
Strong
Neutral
Weak
Usage
Context Usage
Business
Not used.
Academic
Used only in historical accounts of physics or extremely specialised papers on gas metrology.
Everyday
Never used.
Technical
The only plausible context, referring to a specific type of gas density instrument.
Examples
By Part of Speech
adjective
British English
- The dasymeter readings were recorded.
- A dasymeter experiment was set up.
American English
- The dasymeter readings were recorded.
- A dasymeter experiment was set up.
Examples
By CEFR Level
- The museum displayed an antique dasymeter used in 19th-century labs.
- By employing a sensitive dasymeter, the researchers could chart minute variations in the density of the evolved gas.
- The paper critiqued the methodological precision of early dasymeter-based experiments in pneumatic chemistry.
Learning
Memory Aids
Mnemonic
Think of 'dasy' sounding like 'density' and 'meter' as a measuring device: a DASity METER.
Conceptual Metaphor
TOOL FOR REVEALING THE INVISIBLE (as it measures the unseen property of a gas).
Watch out
Common Pitfalls
Translation Traps (for Russian speakers)
- Do not confuse with 'денсиметр' (densimeter) which is for liquids/solids.
- The 'meter' part refers to a measuring instrument, not to length/метр.
Common Mistakes
- Confusing it with a hydrometer (for liquids) or a manometer (for pressure).
- Misspelling as 'dasimeter' or 'dacimeter'.
Practice
Quiz
A dasymeter is primarily used to measure:
FAQ
Frequently Asked Questions
Extremely rarely. Modern, more precise electronic instruments have largely replaced it.
It operates on the principle of buoyancy; a weighted object sinks or rises in a gas depending on the gas's density.
It is commonly associated with the French scientist François Arago in the early 19th century.
No, its meaning is strictly confined to this specific type of scientific instrument.