vena labialis ve·na·la·bialis uncommon noun 1. veins draining the lips of the vulva Synonymslabial veinvena labialis 2. a vein draining the lips of the mouth Synonymslabial veinvena labialis Related words Word family vena labialis inferiorvena labialis superior Broader terms vein Narrower terms inferior labial veinsuperior labial veinvenae labiales anterioresvenae labiales posteriores Parts lipvulva WordNet 2.1 (Princeton University). WordNet 2.1 Copyright Princeton University. All rights reserved.