transitionTRANSI'TION, n. transizh'on. [L. transitio.] Passage from one place or state to another; change; as the transition of the weather form hot to cold. Sudden transitions are sometimes attended with evil effects. Transition rocks, in geology, rocks supposed to have been formed when the world was passing from an uninhabitable to a habitable state. These rocks contain few organic remains, and when they occur with others, lie immediately over those which contain none, and which are considered as primitive. |