Nī'grīne, n.
n. [Fr. nigrine, nigrin, from Lat. niger, black.] An ore of titanium, found in black grains or rolled pieces. [Written also nigrin.] Ure.
n. [Fr. nigrine, nigrin, from Lat. niger, black.] An ore of titanium, found in black grains or rolled pieces. [Written also nigrin.] Ure.