amastia vs surgery

amastia and surgery both are nouns.

Word	Noun	Adjective	Verb	Adverb
amastia	Yes	No	No	No
surgery	Yes	No	No	No

amastia (noun)	surgery (noun)
absence of the mammary glands (either through surgery or developmental defect)	a medical procedure involving an incision with instruments; performed to repair damage or arrest disease in a living body
	a room in a hospital equipped for the performance of surgical operations
	a room where a doctor or dentist can be consulted
	the branch of medical science that treats disease or injury by operative procedures