reinforcement

英[riːɪn'fɔːsm(ə)nt] 美[,riɪn'fɔrsmənt]

1. a military operation (often involving new supplies of men and materiel) to strengthen a military force or aid in the performance of its mission;

"they called for artillery support"

2. information that makes more forcible or convincing;

"his gestures provided eloquent reinforcement for his complaints"

3. (psychology) a stimulus that strengthens or weakens the behavior that produced it

4. a device designed to provide additional strength;

"the cardboard backing was just a strengthener"

"he used gummed reinforcements to hold the page in his notebook"

5. an act performed to strengthen approved behavior