1. 
   Frostwork
   Frostwork is a type of speleothem (cave formation) composed of acicular ("needle-like") growths almost always composed of aragonite (a polymorph of calcite) or calcite replaced by aragonite . It is a variety of anthodite. In some caves frostwork may grow on top of cave popcorn or boxwork. ==Formati...
   Found op http://en.wikipedia.org/wiki/Frostwork
   
   
2. 
   Frostwork
   Frost`work' noun The figurework, often fantastic and delicate, which moisture sometimes forms in freezing, as upon a window pane or a flagstone.
   Found op http://www.encyclo.co.uk/webster/F/80
   
   
3. 
   Frostwork
   • (n.) The figurework, often fantastic and delicate, which moisture sometimes forms in freezing, as upon a window pane or a flagstone.
   Found op http://thinkexist.com/dictionary/meaning/frostwork/
   
   
4. 
   frostwork
   1) Window patterns
   Found op http://www.mijnwoordenboek.nl/EN/crossword-dictionary/frostwork/1
   
   

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