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

Examples

• The researcher specialized in teratology, studying birth defects in laboratory animals.
• Medical students learn about teratology to understand developmental disorders.
• The drug was withdrawn after teratology studies showed harmful effects on embryos.
• Ancient teratology included descriptions of dragons and other mythical beasts.
• The teratology department investigates causes of congenital abnormalities.
• Her thesis in teratology examined environmental factors affecting fetal development.