Mineralogy. a variety of gypsum, found in transparent crystals and foliated masses.
Chemistry. a salt of selenious acid.
a colourless glassy variety of gypsum
noun, Chemistry. 1. a nonmetallic element chemically resembling sulfur and tellurium, occurring in several allotropic forms, as crystalline and amorphous, and having an electrical resistance that varies under the influence of light. Symbol: Se; atomic weight: 78.96; atomic number: 34; specific gravity: (gray) 4.80 at 25°C, (red) 4.50 at 25°C. noun 1. a nonmetallic element […]
noun, Classical Mythology. 1. Sirius (def 2).
woody district; shaggy, a place among the mountains of Ephraim, bordering on Benjamin, to which Ehud fled after he had assassinated Eglon at Jericho (Judg. 3:26, 27).
1. a combining form meaning “moon,” used in the formation of compound words: selenography. combining form 1. denoting the moon: selenology