. "Matter/antimatter" . "antineutronium" . . "antihydrogen" . "denote antiparticles" . "anti-hadrons" . "antimatter as fuel" . . . . "charge" . "anti-particle" . "Antimatter#Antihelium" . . . "anti-proton handling" . "antimatter asymmetry" . . "Antimatter#Fuel" . "Antimatter" . . . "antimatter equivalents" . . "Crunch" . . "anti-world" . "negamatter" . . "particle\u2013antiparticle pairs" . "anti" . "anti-matter" . . "antibaryon" . . . . . . "Matter/anti-matter" . "particle-antiparticle symmetry" . "Antimatter" . "antibaryons" . "The Crunch" . "antimatter" . .