A medicinal preparation of resin obtained from any of several northern European pine trees, especially the Swiss pine, Pinus cembra, and the Scots pine, P. sylvestris.
Origin
Late 18th century.
Definition of Riga balsam in US English:
Riga balsam
noun
rare
A medicinal preparation of resin obtained from any of several northern European pine trees, especially the Swiss pine, Pinus cembra, and the Scots pine, P. sylvestris.