tocology vs medical specialty

tocology and medical specialty both are nouns.

Word	Noun	Adjective	Verb	Adverb
tocology	Yes	No	No	No
medical specialty	Yes	No	No	No

As nouns, medical specialty is a hypernym of tocology; that is, medical specialty is a word with a broader meaning than tocology:

tocology: the branch of medicine dealing with childbirth and care of the mother
medical specialty: the branches of medical science that deal with nonsurgical techniques

Other hypernyms of tocology include medicine.

tocology (noun)	medical specialty (noun)
the branch of medicine dealing with childbirth and care of the mother	the branches of medical science that deal with nonsurgical techniques