a female given name.
noun (pl) -bies
a deep red transparent precious variety of corundum: occurs naturally in Myanmar and Sri Lanka but is also synthesized. It is used as a gemstone, in lasers, and for bearings and rollers in watchmaking. Formula: Al2O3
the deep-red colour of a ruby
(as adjective): ruby lips
something resembling, made of, or containing a ruby
(as modifier): ruby necklace
(modifier) denoting a fortieth anniversary: our ruby wedding
(formerly) a size of printer’s type approximately equal to 51/2 point
A deep-red, translucent variety of the mineral corundum, containing small amounts of chromium and valued as a gem. Compare sapphire.
(Heb. peninim), only in plural (Lam. 4:7). The ruby was one of the stones in the high priest’s breastplate (Ex. 28:17). A comparison is made between the value of wisdom and rubies (Job 28:18; Prov. 3:15; 8:11). The price of a virtuous woman is said to be “far above rubies” (Prov. 31:10). The exact meaning of the Hebrew word is uncertain. Some render it “red coral;” others, “pearl” or “mother-of-pearl.”
noun, Mineralogy. 1. proustite. 2. pyrargyrite. noun 1. another name for proustite, pyrargyrite
noun, Mineralogy. 1. a deep red, transparent variety of spinel, used as a gem. noun 1. a red transparent variety of spinel, used as a gemstone
- Ruby-tail wasp
noun 1. any of various brightly coloured wasps of the family Chrysididae, having a metallic sheen, which parasitize bees and other solitary wasps
- Ruby-throated hummingbird
[roo-bee-throh-tid] /ˈru biˌθroʊ tɪd/ noun 1. a small hummingbird, Archilochus colubris, the only hummingbird of eastern North America, having metallic-green upper plumage and a bright red throat in the male.