1. the scientific study of abnormalities of physiological development
Usage: medical; scientific
2. the study of monsters or mythical creatures
Usage: literary; mythological

Examples

• The medical school offers advanced courses in teratologies.
• Researchers in teratologies study birth defects and their causes.
• Environmental factors are important considerations in teratologies.
• The professor specializes in comparative teratologies across species.
• Ancient teratologies included studies of dragons and other mythical beasts.
• Modern teratologies focus on genetic and developmental abnormalities.