beat
cardiac
cardio
cardiogram
cardiograph
cardiology
care
chart
concept
curve
day
design
diagnosis
display
ecg
ekg
electrocardiogram
element
frequency
graph
graphic
health
healthy
heart
heartbeat
icon
illustration
life
line
love
medical
medicine
monitor
passion
power
pulse
rate
red
rhythm
scope
sign
signal
surveillance
symbol
test
unrequited
valentine
wave
white