a North American tree, Oxydendrum arboreum, of the heath family, having leaves with an acid flavor and drooping clusters of white flowers.
a deciduous ericaceous tree, Oxydendrum arboreum, of E North America, having deeply fissured bark, sour-tasting leaves, and small white flowers Also called sourwood
noun 1. potassium binoxalate.
noun 1. a small block of wood for rapping with a gavel.
noun 1. sounding board.
noun 1. that part of a bell against which the tongue strikes. noun 1. the thick part of a bell against which the hammer strikes