n.
pl.a·or·tas or a·or·tae (-tē)
The main trunk of the systemic arteries, carrying blood from the left side of the heart to the arteries of all limbs and organs except the lungs.
[New Latin, from Greek āortē, from āeirein, to lift; see wer-1 in Indo-European roots.]
a·or'tal, a·or'tic adj.
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