AORTA
aorta
(noun) the large trunk artery that carries blood from the left ventricle of the heart to branch arteries
Source: WordNet® 3.1
Etymology
Noun
aorta (plural aortas or aortae)
(anatomy) The great artery which carries the blood from the heart to all parts of the body except the lungs; the main trunk of the arterial system.
(figuratively) The liveliest part of something.
Source: Wiktionary
A*or"ta, n. Etym: [NL., fr. Gr. (Anat.)
Definition: The great artery which carries the blood from the heart to all
parts of the body except the lungs; the main trunk of the arterial
system.
Note: In fishes and the early stages of all higher vertebrates the
aorta divides near its origin into several branches (the aortic
arches) which pass in pairs round the oesophagus and unite to form
the systemic aorta. One or more pairs of these arches persist in
amphibia and reptiles, but only one arch in birds and mammals, this
being on the right side in the former, and on the left in the latter.
Source: Webster’s Unabridged Dictionary 1913 Edition