== aerobics==

  • –noun1.Also called aerobic exercises. ( used with a plural verb ) anyof various sustained exercises, as jogging, rowing,swimming, or cycling, that stimulate and strengthen theheart and lungs, thereby improving the body's utilization ofoxygen.2.( used with a singular verb ) a physical fitness programbased on such exercises: Aerobics is a good way to get yourbody in shape.Origin:

1965–70; see aerobic, -ics; prob. shortened from aerobicexercises on the model of calisthenics