n. The idea that some knowledge of the physical world can be derived logically from general principles.
the GNU version of the Collaborative International Dictionary of English
n. An a priori principle.
The Century Dictionary and Cyclopedia
n. . A principle assumed as if known a priori: used in a depreciatory sense.
n. . A priori reasoning, as characteristic of a phase of thought or of a thinker.
Word Usage
"The fact that man does not have the creative power to imagine categories at variance with the fundamental logical relations and with the principles of causality and teleology enjoins upon us what may be called methodological apriorism."