medical checkup me·di·calc·heckup uncommon noun 1. a thorough physical examination; includes a variety of tests depending on the age and sex and health of the person Synonymscheckupmedical checkupmedical examinationmedical exammedicalhealth check Related words Broader terms examination Part of ballistocardiogramelectrocardiogram WordNet 2.1 (Princeton University). WordNet 2.1 Copyright Princeton University. All rights reserved.