Requiring oxygen to live, function, and grow.
Humans and many other forms of life are dependent on oxygen for “burning” foods to produce energy (see metabolism).
In contrast, many bacteria thrive without oxygen and are described as anaerobic.
adj. 1. of or relating to aerobes: requiring free oxygen for life and growth. 2. describing a type of cellular *respiration in which foodstuffs (carbohydrates) are completely oxidized by atmospheric oxygen, with the production of maximum chemical energy from the foodstuffs.