Noun senega has 2 senses

• senega(n = noun.plant) Array - dried root of two plants of the genus Polygala containing an irritating saponin; Array
is a part of polygala alba, senega, polygala senega, seneca snakeroot, senega root, senega snakeroot, seneka snakeroot, senga root
is a kind of root

• senega(n = noun.plant) polygala alba - perennial bushy herb of central and southern United States having white flowers with green centers and often purple crest; similar to Seneca snakeroot; Array
is a kind of milkwort
has parts: senega