definition of axillary artery
â¢ AXILLARY ARTERY (noun) The noun AXILLARY ARTERY has 1 sense: 1. the part of the main artery of the arm that lies in the armpit and is continuous with the subclavian artery above and the brachial artery below. Familiarity information: AXILLARY ARTERY used as a noun is very rare. Dictionary entry details. â¢ AXILLARY ARTERY (noun)