zinc sulfide

noun Chemistry.
a white to yellow, crystalline powder, ZnS, soluble in acids, insoluble in water, occurring naturally as wurtzite and sphalerite: used as a pigment and as a phosphor on x-ray and television screens.

Origin:
1880–85

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Based on the Random House Dictionary, © Random House, Inc. 2014.
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WordNet
zinc sulfide

noun
a yellow to white crystalline fluorescent compound that occurs naturally as sphalerite or wurtzite and is used as a luminous pigment 
WordNet® 3.0, © 2006 by Princeton University.
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Example sentences
Most zinc ore found naturally in the environment is found as the salt, zinc
  sulfide.
Most zinc ore found naturally in the environment is in the form of zinc sulfide.
These decay products in turn decay, and the alpha radiation is detected by the
  zinc sulfide screen and photomultiplier.
Roasting is a high-temperature process that converts zinc sulfide concentrate
  to an impure zinc oxide called calcine.
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