lightparticle
nounUK /ˈlaɪtˌpɑːtɪkəl/
US /ˈlaɪtˌpɑːrtɪkəl/
A light particle is a tiny bit of light that moves very fast.
The scientist explained that a light particle carries energy from the sun.
OTHER MEANINGS
2. A small glowing speck or spark seen in the air.
A light particle floated past the window in the sunbeam.
3. A tiny unit of light used in physics to describe brightness.
Each light particle adds a little brightness to the beam.
4. A small point of light on a screen or display.
The screen showed a single light particle in the dark corner.