Word Study
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pacemaker
CIDE DICTIONARY
pacemaker, n.
- a specialized bit of heart tissue that controls the heartbeat. [WordNet 1.5]
- An implanted electronic device that takes over the function of the natural cardiac pacemaker{1}; -- used to assist people whose heartbeat is irregular. [WordNet 1.5]
- A horse used to set the pace in racing. [WordNet 1.5]
OXFORD DICTIONARY
pacemaker, n.
1 a competitor who sets the pace in a race.
2 a natural or artificial device for stimulating the heart muscle and determining the rate of its contractions.
1 a competitor who sets the pace in a race.
2 a natural or artificial device for stimulating the heart muscle and determining the rate of its contractions.
For further exploring for "pacemaker" in Webster Dictionary Online
