n. [ Gr. &unr_; a first element + -logy. ] [ Written also stoechiology. ] 1. That part of the science of physiology which treats of the elements, or principles, composing animal tissues. [ 1913 Webster ]

2. (Logic) The doctrine of the elementary requisites of mere thought. Sir W. Hamilton. [ 1913 Webster ]

3. The statement or discussion of the first principles of any science or art. [ 1913 Webster ]