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lightbulb
 

Definitions from WordNet

Noun lightbulb has 1 sense
  1. light bulb, lightbulb, bulb, incandescent lamp, electric light, electric-light bulb - electric lamp consisting of a glass bulb containing a wire filament (usually tungsten) that emits light when heated
    --1 is a kind of electric lamp
    --1 has parts: filament

Definitions from the Web

Lightbulb

Definition

A lightbulb is a device that produces light from electricity, typically consisting of a glass bulb or tube containing a filament or gas.

Senses

Noun

  • 1. A source of artificial light:

    • Turn on the lightbulb in the living room.

  • 2. A physical object used in a lighting fixture:

    • The lightbulb in the lamp needs to be replaced.

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