a comprehensive physical examination:
He went to the doctor for a checkup.
an examination or close scrutiny, as for verification, accuracy, or comparison:
They gave the motor a checkup.
an examination to see if something is in order
(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
(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
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.
checkup check·up (chěk’ŭp’)
noun 1. a valve permitting liquids or gases to flow in one direction only. noun 1. a valve that closes by fluid pressure to prevent return flow Also called nonreturn valve
[chek-wey-muh n] /ˈtʃɛkˌweɪ mən/ noun, plural checkweighmen. 1. a representative elected by coal miners to the findings of the mine owner’s where miners are paid by the weight of coal mined.
[chek-rahy-ter] /ˈtʃɛkˌraɪ tər/ noun 1. a machine for printing amounts on , as by perforations, so as to prevent alterations.
[chek-ee] /ˈtʃɛk i/ adjective, Heraldry. 1. divided into several rows of squares of two alternating tinctures: a fess checky, or and azure. /ˈtʃɛkɪ/ adjective 1. (usually postpositive) (heraldry) having squares of alternating tinctures or furs; checked