Aerobics

n. pl., bu	1.	physical exercises performed in a sustained and strenuous fashion designed to cause a temporary increase in respiration rate and heart rate, such a running, swimming, walking, or calisthenics. Calisthenic sessions in groups, performed by following a leader in moving to a rhythmic musical accompaniment, are a popular form of aerobics.
	2.	a system of physical conditioning relying largely on aerobics exercises.

Noun

1.

aerobics - exercise that increases the need for oxygen Synonyms: aerobic exercise

aerobic exercise, cardiopulmonary exercise