international candle
Rare / Obsolete TechnicalHistorical, Technical, Scientific
Definition
Meaning
A historical unit of luminous intensity, defined as one-tenth of the standard candle, used internationally in photometry.
A technical term from photometry and lighting standards, now largely obsolete but historically significant for defining light measurement. It has been replaced by the candela.
Linguistics
Semantic Notes
The term is a historical artifact of scientific standardization. It refers to a specific physical measurement, not an object. Usage today is primarily found in historical or metrological contexts.
Dialectal Variation
British vs American Usage
Differences
No significant difference in usage as it was an internationally defined scientific term. The word 'candle' itself might have slight pronunciation variations.
Connotations
Identical historical/scientific connotation in both regions.
Frequency
Extremely rare in modern discourse in both UK and US. Encounters would be almost exclusively in historical texts.
Vocabulary
Collocations
Grammar
Valency Patterns
The [apparatus] was calibrated to [number] international candles.The early standard was the international candle.Vocabulary
Synonyms
Strong
Neutral
Weak
Vocabulary
Antonyms
Usage
Context Usage
Business
Not used.
Academic
Used only in historical contexts within physics, engineering, or history of science papers.
Everyday
Virtually never used.
Technical
The primary context, but only in historical documentation of photometric standards.
Examples
By Part of Speech
adjective
British English
- The international-candle standard was superseded in 1948.
- He referred to the obsolete international-candle definition.
American English
- The international-candle unit was formally abandoned.
- It was an international-candle measurement.
Examples
By CEFR Level
- The old lamp's brightness was measured in international candles.
- Prior to the adoption of the candela, many nations used the international candle as a photometric benchmark.
- The 1909 international candle definition, based on specific carbon-filament lamps, represented a crucial step towards global standardisation in photometry.
Learning
Memory Aids
Mnemonic
Think of an 'international agreement' on how bright a 'candle' should be as a standard unit.
Conceptual Metaphor
STANDARDIZATION IS A COMMON MEASURE (The abstract concept of a universally agreed-upon benchmark is conceptualized as a concrete, shared object).
Watch out
Common Pitfalls
Translation Traps (for Russian speakers)
- Avoid translating literally as 'международная свеча' in modern contexts, as it is a specific term. The modern unit is 'кандела' (candela).
- Do not confuse with a decorative or symbolic candle used in international events.
Common Mistakes
- Using it as a term for a real candle used globally.
- Assuming it is a current technical term.
- Confusing it with 'candlepower' (a related but different historical unit).
Practice
Quiz
In which field was the term 'international candle' primarily used?
FAQ
Frequently Asked Questions
No, it is an obsolete unit. It was officially replaced by the candela (cd) in 1948.
One international candle is approximately equal to 1.02 candelas. The candela is the modern SI base unit for luminous intensity.
Because it was defined by an international agreement among several nations (including France, Britain, and the USA) to create a common standard, moving away from various national 'candle' standards.
Only if you are discussing the history of measurement. For contemporary measurements, you must use the SI unit, the candela.