A theoretical type of antimatter rocket which uses proton-antiproton fuel, and magnetic rocket funnels to direct the π-on exhaust. The pi meson particles are created by the matter-antimatter annihilation of protons and antiprotons.

plural of pious fraud

plural of pion rocket

plural of pious fiction

plural of pioneer axon

(physics, of a theory) That includes pions

plural of Piotrowski

A surname from Polish.

plural of Piontek

A surname from Polish.