Within the psychological literature, there are numerous definitions of racism available. However, some fail to acknowledge concepts that are often bound up with racism, discrimination, and prejudice—such as power and privilege. In briefly discussing the history of race as a social construct, this entry seeks to understand the function that discrimination and prejudice serve in society. Additionally, shedding light on the process of racial formation provides context for the evolution of racism from overt and blatant to concealed and ambiguous, and embedded throughout society. In highlighting the various forms of racism, discrimination and prejudice, this entry provides an overview of adolescents’ experiences with implicit, subtle, explicit, and institutional racism, and implications for their development and psychological well-being.