(n.) The study of the physical universe as a whole\; or a treatise relating to the structure and parts of the system of creation, the elements of bodies, the modifications of material things, the laws of motion, and the order and course of nature.

aesthetics astrogony axiology big bang theory casuistry continuous creation theory cosmic evolution cosmic philosophy cosmism cosmogony cosmography epistemology ethics expanding universe theory first philosophy gnosiology logic mental philosophy metaphysics moral philosophy nebular hypothesis ontology phenomenology philosophastry philosophic doctrine philosophic system philosophic theory philosophical inquiry philosophical speculation philosophy pulsating universe theory school of philosophy school of thought science of being sophistry stellar cosmogony theory of beauty theory of knowledge value theory