a very common mineral, zinc sulfide, ZnS, usually containing some iron and a little cadmium, occurring in yellow, brown, or black crystals or cleavable masses with resinous luster: the principal ore of zinc and cadmium; blackjack.
a yellow to brownish-black mineral consisting of zinc sulphide in cubic crystalline form with varying amounts of iron, manganese, cadmium, gallium, and indium: the chief source of zinc. Formula: ZnS Also called zinc blende
A usually yellow-brown or brownish-black cubic mineral occurring either as single dodecahedral crystals or as granular masses. It often contains cadmium, arsenic, or manganese and has a distinct rotten egg odor. It is often found in association with the mineral galena and is the primary ore of zinc. Chemical formula: ZnS.
noun, Cell Biology. 1. the period of the cell cycle prior to mitosis, during which the chromosomes are replicated. S phase n. The phase of the mitotic cycle during which DNA synthesis occurs.
SPHCOM Society for the Preservation of Historical Coin-Operated Machines
adjective 1. belonging or pertaining to the Sphecidae, a family of solitary wasps, including the mud daubers, sand wasps, etc. noun 2. a sphecid wasp.
noun a fear of wasps