Early Definitions Of Biology
From Lamarck, 1802: Biology: this is one of the three divisions of terrestrial physics; it includes all which pertains to living bodies and particularly to their organization, their developmental processes, the structural complexity resulting from prolonged action of vital movements, the tendency to create special organs and to isolate them by focusing activity in a center, and so on.
From Treviranus, 1802: The objects of our research will be the different forms and phenomena of life, the conditions and laws under which they occur and the causes whereby they are brought into being. The science which concerns itself with these objects we shall designate Biology or the Science of Life.
SOURCE: As translated by William Coleman in Biology in the Nineteenth Century: Problems of Form, Function, and Transformation (1971), p. 2.