discharge lamp: meaning, definition, pronunciation and examples
C1Technical/Scientific
Quick answer
What does “discharge lamp” mean?
An electric lamp that produces light by passing an electric current through a gas or vapor, causing it to glow.
Audio
Pronunciation
Definition
Meaning and Definition
An electric lamp that produces light by passing an electric current through a gas or vapor, causing it to glow.
A type of lamp where light is generated by an electrical discharge between two electrodes in a gas-filled tube, including fluorescent lamps, neon lights, and high-intensity discharge (HID) lamps.
Dialectal Variation
British vs American Usage
Differences
No significant lexical differences. Spelling of related terms may differ (e.g., 'colour' vs 'color' in technical descriptions).
Connotations
Neutral technical term in both varieties.
Frequency
Equally low-frequency in general discourse but standard in engineering, physics, and lighting design contexts in both regions.
Grammar
How to Use “discharge lamp” in a Sentence
The [ADJECTIVE] discharge lamp provides [NOUN].A discharge lamp uses [NOUN] to produce light.Vocabulary
Collocations
Examples
Examples of “discharge lamp” in a Sentence
verb
British English
- The circuit is designed to discharge safely.
- The old battery failed to discharge properly.
American English
- The capacitor will discharge rapidly.
- The system is discharging excess voltage.
adverb
British English
- The current flows discharge-wise through the tube.
- Not standard usage.
American English
- Not standard usage.
- Not standard usage.
adjective
British English
- The discharge process is efficient.
- We observed the discharge characteristics.
American English
- The discharge rate is critical.
- Check the discharge voltage.
Usage
Meaning in Context
Business
In procurement for industrial or street lighting: 'We need to source energy-efficient discharge lamps for the warehouse.'
Academic
In physics or engineering papers: 'The spectrum of the mercury discharge lamp was analysed.'
Everyday
Rare. Might occur in DIY contexts: 'The streetlight uses a yellow sodium discharge lamp.'
Technical
Standard term in lighting design, electrical engineering, and physics.
Vocabulary
Synonyms of “discharge lamp”
Strong
Neutral
Weak
Vocabulary
Antonyms of “discharge lamp”
Watch out
Common Mistakes When Using “discharge lamp”
- Pronouncing it as /dɪsˈtʃɑːdʒ/ (verb stress) instead of /ˈdɪstʃɑːdʒ/ (noun stress).
- Confusing it with the verb 'to discharge' meaning to release.
FAQ
Frequently Asked Questions
A neon light is one specific type of discharge lamp that uses neon gas. 'Discharge lamp' is the broader category.
Some types, like metal halide lamps, require time for the gas and metal vapours inside to heat up and reach optimal pressure for the electrical discharge.
No. LEDs (Light Emitting Diodes) are solid-state devices that produce light via electroluminescence in a semiconductor, not via an electrical discharge in a gas.
HID stands for High-Intensity Discharge. HID lamps are a powerful and efficient subclass of discharge lamps, commonly used in stadiums, car headlights, and large indoor spaces.
An electric lamp that produces light by passing an electric current through a gas or vapor, causing it to glow.
Discharge lamp is usually technical/scientific in register.
Discharge lamp: in British English it is pronounced /ˈdɪs.tʃɑːdʒ ˌlæmp/, and in American English it is pronounced /ˈdɪs.tʃɑːrdʒ ˌlæmp/. Tap the audio buttons above to hear it.
Phrases
Idioms & Phrases
- “None”
Learning
Memory Aids
Mnemonic
Think of DISCHARGE as in electrical discharge (like a spark), not as in releasing a patient. The lamp DISCHARGES light through gas.
Conceptual Metaphor
LIGHT IS A FLUID/GAS (current flows through the gas, which then emits light).
Practice
Quiz
What is the primary mechanism of light production in a discharge lamp?