keratoplasty vs transplantation

keratoplasty and transplantation both are nouns.

Word	Noun	Adjective	Verb	Adverb
keratoplasty	Yes	No	No	No
transplantation	Yes	No	No	No

As nouns, transplantation is a hypernym of keratoplasty; that is, transplantation is a word with a broader meaning than keratoplasty:

keratoplasty: a surgical procedure in which part or all of a damaged or diseased cornea is replaced by healthy corneal tissue from a donor
transplantation: an operation moving an organ from one organism (the donor) to another (the recipient)

Other hypernyms of keratoplasty include anaplasty, plastic surgery, reconstructive surgery, organ transplant, transplant.

keratoplasty (noun)	transplantation (noun)
a surgical procedure in which part or all of a damaged or diseased cornea is replaced by healthy corneal tissue from a donor	the act of removing something from one location and introducing it in another location
	an operation moving an organ from one organism (the donor) to another (the recipient)