"Social rejection" refers to when someone experiences being excluded, ignored, or disliked by others in their social environment. It means that the person is not accepted or welcomed by the people around them. Full definition
Physical pain and intense feelings of social rejection hurt in the same way. (petesgrillandpizza.com)
The resulting brain scans revealed that the participants who received the drug exhibited reduced neural responses to social rejection in brain regions associated with interpreting emotional and physical pain. (scientificamerican.com)
Nowadays we know social rejection doesn't equal a death sentence, but aside from the surface of hardships our bodies have a physical reaction as well. (lifehacker.com)