laparoscopy vs laparotomy

laparoscopy and laparotomy both are nouns.

Word	Noun	Adjective	Verb	Adverb
laparoscopy	Yes	No	No	No
laparotomy	Yes	No	No	No

As nouns, laparotomy is a hypernym of laparoscopy; that is, laparotomy is a word with a broader meaning than laparoscopy:

laparoscopy: laparotomy performed with a laparoscope that makes a small incision to examine the abdominal cavity (especially the ovaries and Fallopian tubes)
laparotomy: surgical incision into the abdominal wall; often done to examine abdominal organs

laparoscopy (noun)	laparotomy (noun)
laparotomy performed with a laparoscope that makes a small incision to examine the abdominal cavity (especially the ovaries and Fallopian tubes)	surgical incision into the abdominal wall; often done to examine abdominal organs