1. The entering of an adhesive into an adherend.
This property is measured by the depth to which
the adhesive penetrates the adherend. See also: ABSORBENCY ; PERMEABILITY ; STRIKE IN . 2. A
general term for the infusion of a tanning
material into the thickness of a hide or skin. 3.
The entering of an ink vehicle into the surface of
a paper or cloth. (17 , 143 , 309 )