Definition of sweet birch
: a common aromatic birch (Betula lenta) of eastern North America that has shiny brown bark when young, hard dark-colored wood, and a volatile oil in its bark resembling wintergreen —called also black birch
First Known Use of sweet birch
Medical Definition of sweet birch
: a common birch (Betula lenta) of the eastern United States with spicy brown bark that yields birch oil
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