Scratch pad

Cretin

one whose physical and mental development has been retarded or arrested due to thyroid deficiency
www.southalabama.edu/alliedhealth/cls/Ravine/glossary_of_pathology_and_%20medical_terms.htm

idiot: a person of subnormal intelligence
wordnet.princeton.edu/perl/webwn

Cretinism is a congenital form of deficiency of thyroid hormones, retarding mental and physical growth.
en.wikipedia.org/wiki/Cretin