Definitions of Progressional

  1. Of or pertaining to progression; tending to, or capable of, progress. Newage Dictionary DB

Usage examples for Progressional

  1. While varieties and races arise by progressional or stationary variation of the idioplasm, modifications are produced by such influences of nutrition and climate as act only on the soma- plasm and the non- plasmic substances, and hence do not give rise to inheritable characters in the organism. – A Mechanico-Physiological Theory of Organic Evolution by Carl Von Nägeli