- (functioning as singular) any system of sustained exercises designed to increase the amount of oxygen in the blood and strengthen the heart and lungs
WordReference Random House Learner's Dictionary of American English © 2019
used with a singular verb]:Aerobics is a good way to lose weight.[plural;
used with a plural verb]:The aerobics were fairly strenuous.
adj. [before a noun] of or relating to aerobics:aerobics classes.
- SportAlso called aero′bic ex′ercises. (used with a pl. v.) any of various sustained exercises, as jogging, rowing, swimming, or cycling, that stimulate and strengthen the heart and lungs, thereby improving the body's utilization of oxygen.
- Sport(used with a sing. v.) a physical fitness program based on such exercises:Aerobics is a good way to get your body in shape.
see aerobic, -ics;
prob. shortened from aerobic exercises on the model of calisthenics]