garnet Meaning, Definition & Usage

  1. noun any of a group of hard glassy minerals (silicates of various metals) used as gemstones and as an abrasive

WordNet

Gar"net noun
Etymology
OE. gernet, grenat, OF. grenet,grenat, F. grenat, LL. granatus, fr. L. granatum pomegranate, granatus having many grains or seeds, fr. granum grain, seed. So called from its resemblance in color and shape to the grains or seeds of the pomegranate. See Grain, and cf. Grenade, Pomegranate.
Definitions
  1. (Min.) A mineral having many varieties differing in color and in their constituents, but with the same crystallization (isometric), and conforming to the same general chemical formula. The commonest color is red, the luster is vitreous, and the hardness greater than that of quartz. The dodecahedron and trapezohedron are the common forms. ✍ There are also white, green, yellow, brown, and black varieties. The garnet is a silicate, the bases being aluminia lime (grossularite, essonite, or cinnamon stone), or aluminia magnesia (pyrope), or aluminia iron (almandine), or aluminia manganese (spessartite), or iron lime (common garnet, melanite, allochroite), or chromium lime (ouvarovite, color emerald green). The transparent red varieties are used as gems. The garnet was, in part, the carbuncle of the ancients. Garnet is a very common mineral in gneiss and mica slate.
Gar"net noun
Etymology
Etymol. unknown.
Definitions
  1. (Naut.) A tackle for hoisting cargo in our out.

Webster 1913