'Centripetal impression' definitions:

Definition of 'Centripetal impression'

From: GCIDE

Centripetal \Cen*trip"e*tal\, a. [L. centrum center + petere to move toward.]
1. Tending, or causing, to approach the center. [1913 Webster]
2. (Bot.) (a) Expanding first at the base of the inflorescence, and proceeding in order towards the summit. (b) Having the radicle turned toward the axis of the fruit, as some embryos. [1913 Webster]
3. Progressing by changes from the exterior of a thing toward its center; as, the centripetal calcification of a bone. --R. Owen. [1913 Webster]
Centripetal force (Mech.), a force whose direction is towards a center, as in case of a planet revolving round the sun, the center of the system, See {Centrifugal force}, under Centrifugal.
Centripetal impression (Physiol.), an impression (sensory) transmitted by an afferent nerve from the exterior of the body inwards, to the central organ. [1913 Webster]