IPA: /ˌtɛrəˈtɒlədʒɪk/
KK: /tɛrəˈtɑlədʒɪk/
Relating to the study of deformities or abnormalities, especially in the context of development and classification of physical malformations.
The teratologic aspects of the research focused on congenital deformities in animals.
Teratologic → It is formed from "terato-" (from Greek "teratos", meaning monster or abnormality) and "-logic" (from Greek "logia", meaning study or science). The word refers to the study of abnormalities or monsters, particularly in biological contexts.
Think of 'terato-' meaning monster and '-logic' meaning study — so teratologic is the study of monsters or abnormalities.