Feynman diagram

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Feynman diagram

n.
A diagram used in quantum electrodynamics and quantum chromodynamics to help describe and visualize the possible interactions between particles. Fermions are represented with straight lines, and bosons with wavy lines. Points of intersection indicate an interaction between the particles.

[After Richard Phillips Feynman.]

Feynman diagram

(ˈfaɪnmən)
n
(General Physics) physics a graphical representation of the interactions between elementary particles