- The act of rubbing the surface of one body against that
of another; attrition; in hygiene, the act of rubbing the body with the
hand, with flannel, or with a brush etc., to excite the skin to healthy
action. - The resistance which a body meets with from the surface
on which it moves. It may be resistance to sliding motion, or to
rolling motion. - A clashing between two persons or parties in opinions or
work; a disagreement tending to prevent or retard progress.