1. 
   Terracing
   Dikes built along the contour of sloping farm land that hold runoff and sediment to reduce erosion.
   Found op http://www.epa.gov/OCEPAterms/
   
   
2. 
   Terracing
   • (p. pr. & vb. n.) of Terrace
   Found op http://thinkexist.com/dictionary/meaning/terracing/
   
   
3. 
   terracing
   terracing 1. A series of level, fairly narrow strips of ground constructed on a hillside that would otherwise be too steep for cultivation.2. The act or process of creating a terrace or terraces.
   Found op http://www.wordinfo.info/words/index/info/view_unit/2120/2
   
   
4. 
   terracing
   Stepped terrain around the inside slopes of large craters, which has resulted from slumping and sliding of blocks of land. Although usually associated with impact craters with diameters of over 20 km, terracing can occur within volcanic craters, especially collapse craters and calderas.
   Found op http://www.daviddarling.info/encyclopedia/T/terracing.html
   
   

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