"living only in the presence of oxygen," 1884, (after Fr.
aérobie, coined 1863 by Louis Pasteur) from Gk.
aero- "air" (combining form) +
bios "life" (see
bio-).
Aerobics, method of exercise and a fad in early 1980s, is Amer.Eng., coined 1968 by Kenneth H. Cooper, U.S. physician, from the notion of activities which require modest oxygen intake and thus can be maintained.