red cedar noun6 •A juniper of species (Juniperus virginiana) native to North America and highly prized for its fragrant wood.Below, the red cedar festoon'd with tylandria, the pines and cypresses growing out of the white sand that spreads far and flat, […] — 1892 •An arborvitae (Thuja plicata), found in North America.She was a West Coast canoe—dug out of a great red cedar tree. — 1941 •A tree of species Toona sureni, of eastern Asia. •An evergreen tree of the mahogany family with reddish wood, found in Australia (Toona australis). •A tree of species Trichilia hirta, found from Mexico to Paraguay. •Wood of any of these trees. formsred cedars