超声刀 chāoshēngdāo ultrasonic scalpel Origin Definitions Defs Strokes Stroke Words Sentences Sents 超声 超聲 chāoshēng ultrasound ultrasound; ultrasonic waves; related to sound frequencies above the range of human hearing刀 dāo noun knife knife; blade; single-edged sword; any tool used for cutting, slicing, or carving