D defs.my
Entry 1 sense Webster, 1913

Demantoid

· De·man·toid · IPA /dɪˈmænˌtɔɪd/
01 n. A yellow-green, transparent variety of garnet found in the Urals. It is valued as a gem because of its brilliancy of luster, whence the name.
  1. 1.
    A yellow-green, transparent variety of garnet found in the Urals. It is valued as a gem because of its brilliancy of luster, whence the name.(Min.)