[re.in.force] vb [re- + inforce, alter. of enforce] vt (1600) 1: to strengthen or increase by fresh additions "~ our troops" "were reinforcing their pitching staff"
2: to strengthen by additional assistance, material, or support: make stronger or more pronounced "~ levees" "~ the elbows of a jacket" "~ ideas"
3: to stimulate (as an experimental animal or a student) with a reinforcer; also: to encourage (a response) with a reinforcer ~ vi: to seek or get reinforcements -- re.in.force.able adj