Aerobic means "requiring

air The atmosphere of Earth is the layer of gases, known collectively as air, retained by Earth's gravity that surrounds the planet and forms its planetary atmosphere. The atmosphere of Earth protects life on Earth by creating pressure allowing f ...

," in which "air" usually means

oxygen Oxygen is the chemical element with the symbol O and atomic number 8. It is a member of the chalcogen group in the periodic table, a highly reactive nonmetal, and an oxidizing agent that readily forms oxides with most elements as ...

. Aerobic may also refer to *

Aerobic exercise Aerobic exercise (also known as endurance activities, cardio or cardio-respiratory exercise) is physical exercise of low to high intensity that depends primarily on the aerobic energy-generating process. "Aerobic" is defined as "relating to, inv ...

, prolonged exercise of moderate intensity *

Aerobics Aerobics is a form of physical exercise that combines rhythmic aerobic exercise with stretching and strength training routines with the goal of improving all elements of fitness ( flexibility, muscular strength, and cardio-vascular fitness). ...

, a form of aerobic exercise * Aerobic respiration, the aerobic process of cellular respiration * Aerobic organism, a living thing with an oxygen-based metabolism

See also