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BNC: 0 COCA: 0

light bulb

1 ENTRIES FOUND:
light bulb noun
plural light bulbs
light bulb
noun
plural light bulbs
Learner's definition of LIGHT BULB
[count]
: a glass bulb or tube that produces light when it is supplied with electricity电灯泡;电灯管
called also bulb

a light bulb goes off/on

chiefly US, informal
◊ When a light bulb goes off/on (in your head), you suddenly understand something or have a great idea.突然明白;恍然大悟;灵光一现。
BNC: 0 COCA: 0

light bulb

noun

variants or lightbulb
: 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

Illustration of light bulb

Illustration of light bulb
  • 1 bulb containing gas
  • 2 filament
  • 3 connecting and supporting wires
  • 4 exhaust tube
  • 5 screw base
  • 6 base contact

Example Sentences

Recent Examples on the Web Branch Librarian Azalea Ebbay notes that one hanging piece evokes moths attracted to a light bulb, an apt metaphor for the library’s mission. Dirk Sutro, San Diego Union-Tribune, 31 July 2022 All the data collected by the spacecraft instruments would be stored on eight-track tape recorders and then sent back to Earth by a 23-watt transmitter—about the power level of a refrigerator light bulb. Tim Folger, Scientific American, 18 June 2022 Make decisions by sliding the game world using Playdate's crank, which in turn guides a pinball to crash into a light bulb. Sam Machkovech, Ars Technica, 18 Apr. 2022 One chicken puts off as much heat as a 100-watt light bulb. John Schandelmeier, Anchorage Daily News, 16 Apr. 2022 The researchers point out that these empirical results support the existing body of literature showing postal reforms accelerated the innovations of the Gilded Age from the light bulb to the Kodak camera. Camille Squires, Quartz, 24 Mar. 2022 One example is Lewis Latimer, an inventor and draftsman best known for his contributions to the patenting of the light bulb and the telephone. Cathy Kozlowicz, Milwaukee Journal Sentinel, 9 Feb. 2022 If Google is a good indicator of public opinion, then the answer would be a light bulb. Csaba Toth, Forbes, 25 Mar. 2022 And when Abilene's jittery, bright-eyed brother (Boyd Holbrook) insists that her overdose was not an accident but a coverup for murder, a light bulb pings. Leah Greenblatt, EW.com, 29 July 2022 See More

Word History

First Known Use

1885, in the meaning defined above

Time Traveler
The first known use of light bulb was in 1885
BNC: 0 COCA: 0

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