a graphical representation of the interactions between elementary particles
Feynman diagram in American English
noun
Physics
a network of lines that represents a series of emissions and absorptions of elementary particles by other elementary particles, from whichthe probability of the series can be calculated
Also called: Feynman graph
Word origin
[1965–70; named after R. P. feynman, who devised it]This word is first recorded in the period 1965–70. Other words that entered Englishat around the same time include: double-book, isometric exercise, no-fault, stun gun, wraparound