birchbark means the bark of the birch tree, especially the white bark of the paper birch, Betula papyrifera. Lexicurio rates it Sui generis — a strength score of 92 out of 100.
Etymology
From birch + bark.
noun
- The bark of the birch tree, especially the white bark of the paper birch, Betula papyrifera.
- A piece of this bark, formerly used for writing on.