pacemaker
英 ['peɪsmeɪkə]
美['pesmekɚ]
- n. [基医] 起搏器；领跑者；标兵
英英释意
- 1. a leading instance in its field;
- "the new policy will be a pacesetter in community relations"
- 2. a specialized bit of heart tissue that controls the heartbeat
- 3. an implanted electronic device that takes over the function of the natural cardiac pacemaker
- 4. a horse used to set the pace in racing