1 a person, horse, vehicle, etc., used in a race or speed trial to set the pace
2 a person, an organization, etc., regarded as being the leader in a particular field of activity
3 (Also called)
cardiac pacemaker a small area of specialized tissue within the wall of the right atrium of the heart whose spontaneous electrical activity initiates and controls the beat of the heart
4 (Also called)
artificial pacemaker an electronic device for use in certain cases of heart disease to assume the functions of the natural cardiac pacemaker
Diccionario de inglés definición
Añada su entrada en el Diccionario colaborativo.