BMXalso: ビーエムエックスFreq.FrequencyTop 50,000Meanings1nounBMX; bicycle motocrossRefers to the sport of bicycle motocross, including the bikes used for it.彼かれは週しゅう末まつにBMXの大たい会かいに出でる。He enters a BMX competition on weekends.新あたらしいBMXを買かった。I bought a new BMX bike.