Relating to the heart or heart tissue; another form of cardiac or cardiacal.
From Greek 'kardia' (heart) + '-ial' (relating to). This suffix variant appears in 'tutorial,' 'martial,' and 'arterial'—creating adjectives with a more Latinate feel than '-ic' endings.
Medical terminology often offers three ways to say the same thing: cardiac (Greek-style), cardial (Latin-style), and cardiaque (French-influenced)—doctors pick whichever sounds most authoritative in their country or specialty.
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