medical examination vs medical checkup

medical examination and medical checkup both are nouns.

Word	Noun	Adjective	Verb	Adverb
medical examination	Yes	No	No	No
medical checkup	Yes	No	No	No

As nouns, medical examination and medical checkup are synonyms defined as:

medical examination and medical checkup: a thorough physical examination; includes a variety of tests depending on the age and sex and health of the person

Other synonyms of medical examination include checkup, health check, medical, medical exam.

medical examination (noun)	medical checkup (noun)
a thorough physical examination; includes a variety of tests depending on the age and sex and health of the person	a thorough physical examination; includes a variety of tests depending on the age and sex and health of the person