Teratology's the study of abnormalities of physiological development. It's often thought of as the study of birth defects, but it much broader than that, taking in other developmental stages, such as puberty; and other life forms, such as plants. The term stems from the Greek τέρᾰς (téras, genitive τέρᾰτος- tératos), meaning monster, or marvel and λόγος - lógos, meaning speech or, more loosely,… (More on Teratogenesis)