noun
luminous body; light-emitting object
Refers to any object that emits light, whether natural (stars, fireflies) or artificial (lamps, LEDs). Used in scientific and general contexts.
太陽は最も身近な発光体だ。
The sun is the most familiar luminous body.
この実験では、発光体とし
In this experiment, we use an LED as the light-emitting object.