SPRUCE spruce-fir, a coniferous tree belonging to the genus Picea, of which there are several species, such as the Norway spruce, Picea excelsa; the black spruce, Picea nigra, &c. (see FIR).
Depretis recalled Nigra from Paris and replaced him by General Cialdini, whose ardent plea for Italian intervention in favor of France in 1870, and whose comradeship with Marshal Macmahon in 1859, would, it was supposed, render him persona gratissima to the French government.
The most remarkable Roman building in Trier is the Porta Nigra, the north gate of the city, a huge fortified gateway, 115 ft.
Nigra, the black poplar, is a tree of large growth, with dark, deeply-furrowed bark on the trunk, and ash-coloured branches; the smooth deltoid leaves, serrated regularly on the margin, are of the deep green tint which has given name to the tree; the petioles, slightly compressed, are only about half the length of the leaves.
One of the worst pests of pear trees is the pear midge, known as Diplosis pyrivora or Cecidomyia nigra, the females of which lay their eggs in the flowerbuds before they open.
How would you define nigra? Add your definition here.