名詞 pacemaker:

1. a leading instance in its field
   同義詞：pacesetter
2. a specialized bit of heart tissue that controls the heartbeat
   同義詞：cardiac pacemaker, sinoatrial node, SA node
3. an implanted electronic device that takes over the function of the natural cardiac pacemaker
   同義詞：artificial pacemaker
4. a horse used to set the pace in racing
   同義詞：pacer, pacesetter

1. Implant a pacemaker; implant a drug capsule.
   植入一個起搏器; 植入一個藥物膠囊

pace.mak.er

n.（名詞）
Sports One who sets the pace in a race.Also called pacer ,pacesetter
【體育運(yùn)動】 定步速者：在比賽中定步速的人也作 pacer,pacesetter
A leader in a field:
帶頭人：一個領(lǐng)域中帶頭的人：
例句：
the fashion house that is the pacemaker.Also called pacesetter
起帶頭作用的時裝屋也作 pacesetter

Biology A part of the body, such as the mass of muscle fibers of the sinoatrial node, that sets the pace or rhythm of physiological activity.
【生物學(xué)】 起搏點(diǎn)：身體的一部分，如竇房結(jié)的肌肉組織纖維團(tuán)，用來確定生理活動的速度或節(jié)奏
Medicine Any of several usually miniaturized and surgically implanted electronic devices used to stimulate or regulate contractions of the heart muscle.
【醫(yī)學(xué)】 心臟起搏器：任一種通常微型化的外科移植電子裝置，用來刺激或調(diào)整心臟肌肉的收縮
Biochemistry A substance that regulates a series of related reactions.
【生物化學(xué)】 定調(diào)質(zhì)：調(diào)整一系列有關(guān)反應(yīng)的一種物質(zhì)

【引伸】
pace.mak.ing
adj.（形容詞）
n.（名詞）