拇指桡侧 meaning in English

the radial side of the thumb

Among them , operating with the power from the tip of the thumb is called finger - tip pushing ; in which the interphalangeal joint of the thumb is fixed at the back - stretching position , operating with the force from the whorled surface is shao - shang point at the side of the thumb - radius is called lateral pushing , in this operation , the operator slightly flexes his wrist joint with index finger , middle finfer , ring finger and little finger naturally stretching forward in the finger - separating pattern
以拇指端峰为着力点操作的称指峰推；操作时，拇指之间关节固定在背伸位，以罗纹面为着力点的称罗纹推；以拇指桡侧少商处为着力面的又叫偏峰推，此法操作时腕关节略屈，食、中、无名、小指向前自然伸开，成散手状。