car·di·o·graph 
(kärdē-ə-grăf′)
(kärdē-ə-grăf′)n.
1. An instrument used to record the mechanical movements of the heart.
2. See electrocardiograph.
car′di·ogra·phy (-ŏgrə-fē) n.
- off-putting
- off-road
- offroad
- off rocker
- offscouring
- offscreen
- off-season
- offset
- offset printing
- offshoot
- offshore
- offside
- offsides
- offsite
- off (someone's) back
- off someone's back
- off (someone's) case
- off someone's case
- off-speed
- offspring
- offstage
- off-the-books
- off the cuff
- off-the-cuff
- off the grid