photon

Definition from Wiktionary, a free dictionary

Contents 1 English 1.1 Etymology 1.2 Pronunciation 1.3 Noun 1.3.1 Derived terms 1.3.2 Translations 1.3.3 See also

[edit] English

Wikipedia

[edit] Etymology

From photo- + -on.

[edit] Pronunciation

• IPA: /ˈfəʊtɒn/

[edit] Noun

photon (plural photons)

1. (physics) The quantum of light and other electromagnetic energy, regarded as a discrete particle having zero rest mass, no electric charge, and an indefinitely long lifetime. It is a gauge boson.

[edit] Derived terms

• photonics

[edit] Translations

[edit] See also

• phonon
• plasmon