Reenforcement
Reenforcement (r?`?n*f?rs"ment) , noun
1.
The act of reenforcing, or the state of being reenforced.
2.
That which reenforces; additional force; especially, additional troops or force to augment the strength of any army, or ships to strengthen a navy or fleet.
3.
(Psychology) A reward or punishment which is given to a person or animal in order to increase the likelihood that a specific behavior will be repeated.