Word Study
pacemaker
WORDNET DICTIONARY
Noun pacemaker has 4 senses
- pacemaker(n = noun.cognition) pacesetter - a leading instance in its field; "the new policy will be a pacesetter in community relations" is a kind of example, exemplar, good example, model
- pacemaker(n = noun.body) cardiac pacemaker, sa node, sinoatrial node - a specialized bit of heart tissue that controls the heartbeat; Array is a kind of cardiac muscle, heart muscle
- pacemaker(n = noun.artifact) artificial pacemaker - an implanted electronic device that takes over the function of the natural cardiac pacemaker; Array is a kind of electronic device
- pacemaker(n = noun.animal) pacer, pacesetter - a horse used to set the pace in racing; Array is a kind of bangtail, race horse, racehorse
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
