a glass bulb containing a gas, such as argon or nitrogen, at low pressure and enclosing a thin metal filament that emits light when an electric current is passed through it
Sometimes shortened to: bulb
WordReference Random House Unabridged Dictionary of American English © 2025
light′ bulb′,
- an electric light.
- 1880–85
Collins Concise English Dictionary © HarperCollins Publishers::
'light bulb' also found in these entries (note: many are not synonyms or translations):
blow
- bulb
- downlight
- filament
- flashbulb
- frosted
- globe
- grow light
- implosion
- lightbulb moment
- socket
- stem
- three-way bulb
- uplight
- watter