Type: Term Pronunciation: lim-fan′jē-ek′tă-sis, -ek-tā′zē-a Definitions: 1. Dilation of the lymphatic vessels, the basic process that may result in the formation of a lymphangioma. Synonyms: lymphectasia, telangiectasia lymphatica Found on http://www.medilexicon.com/medicaldictionary.php?t=51648