Subject-specific dictionaries are reference books that contain an alphabetical list of words with information about them that is specific to that particular subject and not necessarily generic like you would find in an average, everyday dictionary.
Adolescent Depression: A Medical Dictionary, Bibliography, and Annotated Research Guide to Internet References by 
Clinical Depression: A Medical Dictionary, Bibliography, and Annotated Research Guide to Internet References by 
Depression: A Medical Dictionary, Bibliography, and Annotated Research Guide to Internet References by 