glow lamp
- noun
- /ɡloʊ læmp/
- Archaic
:
lámpara de neón
- The old radio has a small glow lamp to indicate when it is powered on.
Examples
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He replaced the faulty glow lamp with a new one to restore the panel's visibility.
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Many stroboscopes rely on a glow lamp to produce rapid flashes of light.
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Look at that glow lamp shining brightly!
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The glow lamp is bright.
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The old radio has a small glow lamp to indicate when it is powered on.
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He replaced the faulty glow lamp with a new one to restore the panel's visibility.
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Many stroboscopes rely on a glow lamp to produce rapid flashes of light.
Synonyms
1
3.5
A glass container filled with neon gas that glows when electricity passes through it
1
6.7
A lamp that makes light when electricity passes between two metal points inside a gas
A small electric light that glows when electricity passes through neon gas
A glass or metal tube filled with gas that makes light when electricity passes through it
A small light that shows when a device is on or working
A lamp that makes light when electricity passes through gas in a glass tube
A lamp that makes light by passing electricity between two metal parts inside a glass tube
How Bright
Surface Forms
Morphology
The meaning is directly and transparently derived from combining 'glow' (gentle light) with 'lamp' (a light source): it denotes a lamp that emits a glow, often used as an indicator. This noun–noun composition follows regular English compounding patterns and is cross-linguistically common, so a B1 learner who knows both constituents can infer the meaning.
Etymology
The name glow lamp comes from early small electric lights filled with gas that actually glow when they are turned on, so the small lamp gave a soft steady light. One popular story says these tiny glowing tubes were used as little 'signals' or 'indicators' on machines, which is why glow lamp means a small light used to show if a device is on.