an examination or close scrutiny, as for verification, accuracy, or comparison:
They gave the motor a checkup.
Origin
1885-90, Americanism; noun use of verb phrase check up
Examples from the web for checkup
Chime to the idea of getting another doc and a full checkup.
When they reach the island, the gorillas get a full checkup before their release.
Call in a qualified technician once a year to give the unit a checkup.
After a quick checkup, she returned to her normal life.
The disease was detected in a routine checkup five days earlier.
Someday your yearly checkup will show up in the mail as a syringe filled with smart serum.
It can read your vital signs, can tell you when it's time to have a checkup.
These blots usually indicate that a full physical checkup with a medical doctor may be wise.
Since these days no airplane can leave the ground without the direct permission of the military, the checkup is fairly easy.
Two months later he was back for his regular checkup.
British Dictionary definitions for checkup
checkup
/ˈtʃɛkˌʌp/
noun
1.
an examination to see if something is in order
2.
(med) a medical examination, esp one taken at regular intervals to verify a normal state of health or discover a disease in its early stages
verb
3.
(intransitive, adverb) sometimes foll by on. to investigate or make an inquiry into (a person's character, evidence, etc), esp when suspicions have been aroused
Word Origin and History for checkup
n.
also check-up, "careful examination," 1921, American English, from check (v.) + up (adv.), on notion of a checklist of things to be examined. The verbal phrase check up (on) is attested from 1889.