voltammeter
RareTechnical/Scientific
Definition
Meaning
An instrument that combines the functions of a voltmeter and an ammeter, used to measure both electrical potential difference (voltage) and electric current.
In electrochemistry, a specialized instrument for performing voltammetry, an analytical technique that measures the current as a function of applied potential to analyze an analyte's redox properties.
Linguistics
Semantic Notes
The word is a compound noun with two primary technical meanings: 1) In electrical engineering, a dual-function meter. 2) In analytical chemistry, a sophisticated lab instrument for electrochemical analysis. Context is crucial for disambiguation.
Dialectal Variation
British vs American Usage
Differences
No significant spelling or usage differences. The technical definitions are identical. Pronunciation may vary slightly.
Connotations
No differential connotations; purely technical term in both dialects.
Frequency
Equally rare and specialized in both dialects, confined to technical fields.
Vocabulary
Collocations
Grammar
Valency Patterns
[Subject] used a voltammeter to [Verb] [Object] (e.g., analyze the solution).The [Material] was characterized by [cyclic] voltammeter.Measure [Parameter] with a voltammeter.Vocabulary
Synonyms
Neutral
Weak
Usage
Context Usage
Business
Virtually never used. Might appear in procurement for a laboratory or engineering facility.
Academic
Used in chemistry, electrochemistry, materials science, and some engineering publications and lab courses.
Everyday
Never used.
Technical
Core term in electrochemistry labs and electrical engineering contexts (though 'multimeter' is more common for basic V/A measurement).
Examples
By Part of Speech
adjective
British English
- voltammeter data
- voltammeter cell
American English
- voltammeter analysis
- voltammeter system
Examples
By CEFR Level
- This word is too advanced for A2 level.
- This word is too advanced for B1 level.
- The engineer used a voltammeter to check the circuit's voltage and current.
- A voltammeter is a key tool for some electrical measurements.
- The researcher performed a detailed analysis using a state-of-the-art digital voltammeter.
- Cyclic voltammeter experiments revealed the complex redox behaviour of the novel compound.
Learning
Memory Aids
Mnemonic
Think: VOLT-AGE and AMPS (current) METER. It's a meter for both volts and amps.
Conceptual Metaphor
An electrical/chemical probe or interrogator. It 'asks' a sample questions (applies voltage) and 'listens' to its answer (measures current).
Watch out
Common Pitfalls
Translation Traps (for Russian speakers)
- Do not confuse with 'вольтметр' (voltmeter) or 'амперметр' (ammeter) separately. 'Вольтамперметр' is a direct but rare equivalent for the dual-meter sense. For the analytical instrument, 'вольтамперометрический анализатор' or simply 'вольтамперметр' in a scientific context.
Common Mistakes
- Confusing it with a multimeter (which measures more than two quantities).
- Using it in a non-technical context.
- Misspelling as 'voltameter' (a different, obsolete instrument).
Practice
Quiz
In which field is a 'voltammeter' most specifically and commonly used as a core analytical instrument?
FAQ
Frequently Asked Questions
A multimeter typically measures voltage, current, and resistance (and sometimes more). A voltammeter specifically measures voltage and current (ampere), and in its analytical chemistry sense, it is a specialized, sensitive instrument for studying redox reactions, which a standard multimeter cannot do.
A basic dual-function voltammeter (voltmeter/ammeter) cannot directly measure resistance; you would need a multimeter or ohmmeter. However, resistance can be calculated using Ohm's Law (R = V/I) from simultaneous voltage and current measurements.
No, it is a rare, highly technical term used almost exclusively by electrical engineers, electrochemists, and researchers in related fields. The average native speaker will likely never encounter it.
In a chemistry lab, a voltammeter (or more accurately, a potentiostat used for voltammetry) is used to perform analytical techniques like cyclic voltammetry. This helps determine the concentration of an analyte, study electron transfer processes, and investigate the redox mechanisms of chemical species.