noun🔗ShareパイオンAny of three semistable mesons, having positive, negative or neutral charge, composed of up and down quarks/antiquarks."Inside the particle accelerator, scientists observed the fleeting existence of a positively charged pion before it decayed. "粒子加速器の中で、科学者たちは正電荷を帯びたパイオンが崩壊する前に、その束の間の存在を観測した。physicselementChat with AIVocabulary GamePractice Reading
