LED

UK: ˌel iː ˈdiː | US: ˌel iː ˈdiː

Definition

  1. n. Light Emitting Diode (a semiconductor device that emits light when electrically charged).

  2. vt. Past tense and past participle of "lead" (to guide or direct).

Structure
L <light>E <emitting>D <diode>
Etymology

"LED" is an acronym derived from the initial letters of "Light Emitting Diode." The term emerged in the mid-20th century with advancements in semiconductor technology. The morphemes reflect the core function:

  • "Light" (illumination),
  • "Emitting" (releasing energy),
  • "Diode" (a two-terminal electronic component).
    As a homograph, "led" also traces back to Old English "lǣdan" (to guide), but this analysis focuses on the electronic term.
Examples

  1. The room was illuminated by energy-efficient LED bulbs.

  2. Modern traffic signals often use LED technology for durability.

  3. She led the team to victory with her strategic planning.

  4. LED screens consume less power than traditional displays.

  5. The scientist explained how an LED converts electricity into light.