1. Sexual abuse of or activity with a child, especially a boy.
Usage: offensive; serious crime; formal/legal usage
2. In historical contexts, a relationship between an adult man and an adolescent boy in ancient Greece, often with educational or mentoring components.
Usage: archaic; historical; academic usage

Examples

• Laws against pederasty exist in virtually all modern nations.
• The prosecution presented evidence of pederasty in the criminal case.
• Historians study pederasty in ancient Greek society as a complex social institution.
• Child protection agencies work to prevent pederasty and other forms of abuse.
• The defendant was convicted of pederasty and sentenced to prison.