素そ粒りゅう子し物ぶつ理り学がくそりゅうしぶつりがくMeanings1nounparticle physicsThe branch of physics that studies elementary particles and their interactions.素そ粒りゅう子し物ぶつ理り学がくは、物ぶっ質しつの最さい小しょう構こう成せい要よう素そ