Syn·an'gi·um noun ; plural Synangia . [ New Latin , from Greek ... + ... a hollow vessel.] (Anat.) The divided part beyond the pylangium in the aortic trunk of the amphibian heart. -- Syn*an'gi*al adjective Found on http://www.encyclo.co.uk/webster/S/264
synangium, synangial, synangic 1. A collective or common blood-vessel from which several arteries branch; spec. the terminal part of the arterial trunk in the lower vertebrate. 2. The divided part beyond the pylangium (first and undivided part) in the aortic trunk of the amphibian heart. Found on http://www.wordinfo.info/words/index/info/view_unit/130/17