an instrument for measuring the heart rate.
cardiotachometer car·di·o·ta·chom·e·ter (kär’dē-ō-tā-kŏm’ĭ-tər, -tə-)
An instrument for measuring the rapidity of the heartbeat.
adjective of or relating to the heart and the chest Contemporary Examples Although she trained as a cardiothoracic surgeon, childhood nerve damage prevented her from practicing. Women in the World: Amy Lehman, United States The Daily Beast March 5, 2011
- Cardiothoracic ratio
cardiothoracic ratio cardiothoracic ratio car·di·o·tho·rac·ic ratio (kär’dē-ō-thə-rās’ĭk) n. The transverse diameter of the heart, as determined by x-ray examination, compared with that of the thoracic cage, used to help determine enlargement of the heart.
cardiotomy cardiotomy car·di·ot·o·my (kär’dē-ŏt’ə-mē) n. Incision of the heart wall. Incision of the cardiac end of the stomach.
having a tonic effect on the action of the heart. a cardiotonic substance. cardiotonic car·di·o·ton·ic (kär’dē-ō-tŏn’ĭk) adj. Relating to or having a favorable effect upon the action of the heart. car’di·o·ton’ic n.