Illustration of light bulb
- 1 bulb containing gas
- 2 filament
- 3 connecting and supporting wires
- 4 exhaust tube
- 5 screw base
- 6 base contact
light bulb
noun
variants
or lightbulb
plural light bulbs or lightbulbs
: an electric lamp: such as
a
: one in which a filament gives off light when heated to incandescence by an electric current
called also incandescent, incandescent lamp
b
: one having a coating of fluorescent material on its inner surface that emits visible light : fluorescent lamp
especially
: compact fluorescent light
c
: one using LEDs to generate light
Examples of light bulb in a Sentence
Recent Examples on the Web
Ok Lee also breaks down the tireless ways the crew sought to create an authentic experience—like recreating tiles at a Hong Kong noodle shop in LA and swapping every single light bulb at a real night market.
—
Eda Yu, The Hollywood Reporter, 22 May 2024
The operations building, built in 1970, is said to require $45.2 million in deferred maintenance and improvements, and is often plagued by broken elevators, plumbing problems, busted light bulbs and HVAC issues.
—Jennifer Van Grove, San Diego Union-Tribune, 21 May 2024
See all Example Sentences for light bulb 
Eda Yu, The Hollywood Reporter, 22 May 2024
The operations building, built in 1970, is said to require $45.2 million in deferred maintenance and improvements, and is often plagued by broken elevators, plumbing problems, busted light bulbs and HVAC issues.
—Jennifer Van Grove, San Diego Union-Tribune, 21 May 2024
See all Example Sentences for light bulb
These examples are programmatically compiled from various online sources to illustrate current usage of the word 'light bulb.' Any opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback about these examples.
Dictionary Entries Near light bulb
Cite this Entry
“Light bulb.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/light%20bulb. Accessed 1 Jun. 2024.
Copy CitationKids Definition
lightbulb
noun
light·bulb
ˈlīt-ˌbəlb 
: an electric lamp: as
a
: one in which a filament gives off light when heated by an electric current
called also incandescent lamp
b
Love words? Need even more definitions?
Merriam-Webster unabridged
Share