what  biology
Wiktionary (5.00 / 1 vote) Rate this definition: biology (Noun). The study of all life or living matter. biology (Noun). The living organisms of a particular region. biology (Noun). The structure, function, and behavior of an organism or type of organism. the biology of the whale.
Biology is the science of life. A more realistic and accurate definition of Biology is the reductionist definition: Biology is the natural science that studies the no-spontaneous transfer of energy and the quasi-stable systems that experience it. Now that we have inferred a realistic definition of life, things will go easier.