IRISPRECARN is a technical term used in cardiovascular anatomy. The correct spelling of this word follows the International Phonetic Alphabet (IPA) rules. The first syllable, IRIS, is spelled as /ˈaɪ.rɪs/, where the "i" is pronounced as a long "i" sound. The second part, PRECARN, is spelled as /priːˈkɑːn/, where "pre" is pronounced as "pre" and "carn" is pronounced as "car-n." This word refers to a branch of the coronary artery that supplies blood to the front wall of the heart.