Definition of reinforcements:
(n) :
(uncountable) The act, process, or state of reinforcing or being reinforced.
(n) :
(uncountable, behavioral psychology) The process whereby a behavior with desirable consequences comes to be repeated.
(n) :
(countable) A thing that reinforces.
(n) :
(in the plural) Additional troops or materiel sent to support a military action.
(n) :
A small round white sticker placed around a punched hole in a piece of paper to prevent the binder's rings from tearing through the paper.