Relating to or affecting the arteries; a variant form of arterial used in older medical Latin.
From arteria + -ac suffix, a Latin adjectival ending. This form appears in classical and medieval medical texts as an alternative to the more common arterial in English.
Medieval and Renaissance medical texts used various Latin endings to create adjectives—arteriac appears in old medical manuscripts alongside other Latin forms, showing how the same concept could be expressed differently depending on the author's training and period.
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