Ruby of arsenic, Ruby of sulphur(Chem.), a glassy substance of a red color and a variable composition, but always consisting chiefly of the disulphide of arsenic; — called also ruby sulphur.Ruby of zinc (Min.), zinc sulphide; the mineral zinc blende or sphalerite.Ruby silver(Min.), red silver. See under Red.

Ruby
(Ru"by), a. Ruby-colored; red; as, ruby lips.

Ruby
(Ru"by), v. t. [imp. & p. p. Rubied ; p. pr. & vb. n. Rubying.] To make red; to redden. [R.] Pope.

Rubytail
(Ru"by*tail`) n. (Zoöl.) A European gold wasp (Chrysis ignita) which has the under side of the abdomen bright red, and the other parts deep bluish green with a metallic luster. The larva is parasitic in the nests of other wasps and of bees.

Ruby-tailed
(Ru"by-tailed`) a. Having the tail, or lower part of the body, bright red.

Rubythroat
(Ru"by*throat`) n. (Zoöl.) Any one of numerous species of humming birds belonging to Trochilus, Calypte, Stellula, and allies, in which the male has on the throat a brilliant patch of red feathers having metallic reflections; esp., the common humming bird of the Eastern United States

Rubywood
(Ru"by*wood`) n. red sandalwood. See under Sandalwood.

Rucervine
(Ru*cer"vine) a. [NL. Rucervus, the genus, fr. NL. Rusa a certain genus of deer (Malay rsa deer) + Cervus.] (Zoöl.) Of, like, or pertaining to, a deer of the genus Rucervus, which includes the swamp deer of India.

Ruche
(Ruche) n. [F. ruche ruche, beehive, OF. rusche a beehive, which was formerly made of the bark of trees; cf. W. rhisg, rhisgl, bark, gael. rusg bark, rind.]

1. A plaited, quilled, or goffered strip of lace, net, ribbon, or other material, — used in place of collars or cuffs, and as a trimming for women's dresses and bonnets. [Written also rouche.]

2. A pile of arched tiles, used to catch and retain oyster spawn.

Ruching
(Ruch"ing), n. A ruche, or ruches collectively.

Ruby
(Ru"by) n.; pl. Rubies [F. rubis LL. rubinus, robinus, fr. L. rubeus red, reddish, akin to ruber. See Rouge, red.]

1. (Min.) A precious stone of a carmine red color, sometimes verging to violet, or intermediate between carmine and hyacinth red. It is a red crystallized variety of corundum.

Besides the true or Oriental ruby above defined, there are the balas ruby, or ruby spinel, a red variety of spinel, and the rock ruby, a red variety of garnet.

Of rubies, sapphires, and pearles white.
Chaucer.

2. The color of a ruby; carmine red; a red tint.

The natural ruby of your cheeks.
Shak.

3. That which has the color of the ruby, as red wine. Hence, a red blain or carbuncle.

4. (Print.) See Agate, n., 2. [Eng.]

5. (Zoöl.) Any species of South American humming birds of the genus Clytolæma. The males have a ruby-colored throat or breast.


  By PanEris using Melati.

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