senega root se·ne·ga·root uncommon noun 1. eastern North American plant having a terminal cluster of small white flowers and medicinal roots SynonymsSeneca snakerootSeneka snakerootsenga rootsenega rootsenega snakerootPolygala senega Related words Broader terms milkwort Part of senega WordNet 2.1 (Princeton University). WordNet 2.1 Copyright Princeton University. All rights reserved.
