(n) :
(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.
(n) :
(figuratively) The liveliest part of something.
(n) :
(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.
(n) :
(figuratively) The liveliest part of something.