B超 B chāo 🔊 B-mode ultrasonography + Keep this word Meanings B chāo name B-mode ultrasonographyprenatal ultrasound scanabbr. for B型超聲|B型超声[B xing2 chao1 sheng1] Its characters Bbīeuphemistic variant of 屄[bi1]超chāoto exceedHSK 5