See cardio for more
cardio-
cardio- /kɑːdiəʊ, -diə $ kɑːrdioʊ, -diə/
prefix medical
a cardiograph (=machine that measures movements of the heart)
cardio- /kɑːdiəʊ, -diə $ kɑːrdioʊ, -diə/
prefix medical Language: Greek
Origin: kardia 'heart'
relating to the heart:Origin: kardia 'heart'