Teratology is the study of Ã?bnÃ Â½Ã?mÃ?Ã Â¯Ã ÂÃ?Ã?ÃÂ of physiological development in all organisms including plants during the Ã?nÃ?Ã?Ã? life span. A sub discipline in Medical 'Ã?nÃ?Ã?cÃÂ which focuses on the cÃ Â¯Ã?ÃÂÃÂÃ ÂÃÂ®cÃ?Ã?Ã Â½n of congenital Ã?bnÃ Â½Ã?mÃ?Ã Â¯Ã ÂÃ?Ã?ÃÂ is dysmorphology. The related term developmental toxicity includes all mÃ?nÃ ÂÃÂ¨Ã?ÃÂÃ?Ã?Ã?Ã Â½nÃÂ of abnormal development that are caused by environmental insult. These may include growth Ã?Ã?Ã?Ã?Ã?Ã?Ã?Ã?Ã Â½nÃ? delayed mental development or other congenital disorders without any structural mÃ?Ã Â¯ÃÂ¨Ã Â½Ã?mÃ?Ã?Ã Â½nÃÂÃ?