a solid-state, pulsed laser that uses a ruby crystal to produce a very strong beam of red coherent light, used in making holographs and in cosmetic instruments.
noun 1. a female given name. noun (pl) -bies 1. 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 2. the deep-red colour of a ruby (as adjective): […]
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