Lexic.us

Definition of Pacemaker

1. Noun. A leading instance in its field. "The new policy will be a pacesetter in community relations"

2. Noun. A specialized bit of heart tissue that controls the heartbeat.

3. Noun. An implanted electronic device that takes over the function of the natural cardiac pacemaker.

4. Noun. A horse used to set the pace in racing.

Definition of Pacemaker

1. Noun. One who sets the pace in a race, to guide the others. ¹

2. Noun. (anatomy) A set of nerves which stimulate the heart to beat. ¹

3. Noun. (context: hence medicine) A medical implement that is used to stimulate a heart to beat by simulating the action of the natural pacemaker. ¹

¹ Source: wiktionary.com

Definition of Pacemaker

1. [n -S]

Medical Definition of Pacemaker

1. 1. An object or substance that influences the rate at which a certain phenomenon occurs, often used alone to indicate the natural cardiac pacemaker or an artificial cardiac pacemaker. 2. A substance whose rate of reaction sets the pace for a series of interrelated reactions. (24 Mar 1998)

Lexicographical Neighbors of Pacemaker

pace-setter pace-setters pace car pace cars pace egg pace eggs pace lap pace notes pace setter pace setters

paced pacefollower paceite paceline pacelines pacemaker pacemaker failure pacemaker output pacemaker potential pacemaker sensitivity

pacemaker syndrome pacemakerlike pacemakers pacemaking pacemakings paceman pacemen pacer pacers paces

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