ball of the thumb

短语

词形变化

balls of the thumb 复数 balls of the thumb

释义与例句

n.
  1. 1.

    The fleshy portion, opposite the nail, of the first segment (first phalange) of the human thumb.

    非正式 医学
  2. 2.

    The most fleshy portion of the palm of the human hand, located adjacent to the second joint of the thumb: the thenar eminence.

    医学