Definitions

1. noun

A particle of light, considered as a discrete bundle of electromagnetic radiation.

“The detection of photons in space allowed scientists to understand the universe in a new way.”

2. noun

A quantum of electromagnetic radiation.

“Photons play a crucial role in the process of photosynthesis.”

3. noun

A quantum of energy, especially in the form of electromagnetic radiation.

“The energy of the photons in the beam was too high for the detector to handle.”