A North American tree (Nyssa multiflora) of the Dogwood family, having brilliant, glossy foliage and acid red berries. The wood is crossgrained and very difficult to split. Called also black gum, sour gum, and pepperidge.
- Any of several trees of the genus Nyssa, especially N. aquatica, of the southeast United States, having soft light wood.
- The wood of this tree.