- an E North American milkwort (Polygala senega) with single racemes of white flowers
- its dried root, formerly used as an expectorant
Origin of senega; from Senega (root), variant, variety of Seneca: from use by the Seneca against snake bites
Origin of senegaAlteration of Seneca (from its use by this people).
- (medicine) Seneca root
Part or all of this entry has been imported from the 1913 edition of Webster's Dictionary, which is now free of copyright and hence in the public domain. The imported definitions may be significantly out of date, and any more recent senses may be completely missing.