LED
n. countablen. Stands for light emitting diode. A small electronic part that creates light when electricity flows through it. These are very common in modern light bulbs, screens, and indicator lights because they use very little power.
n. Abbreviation for light emitting diode. A semiconductor device that emits light when an electric current passes through it. Often used in arrays for illumination or as individual indicators in electronic equipment.
The small red LED shows that the TV is on.
Modern cities are replacing old street lamps with LED bulbs to reduce energy costs and maintenance.
The transition to LED technology has revolutionized architectural lighting design, allowing for vibrant color-changing displays that were previously impossible with traditional incandescent or fluorescent sources.
Usually pronounced as individual letters (L-E-D), though occasionally treated as a word ('led') in technical jargon.