1. 
   Petroglyph
   [album] Petroglyph is the second album by Tim Reynolds to be offered as a free internet download. It was originally made available to the public 2002-05-25 on Tim`s official website. ==Track listing== ...
   Found op http://en.wikipedia.org/wiki/Petroglyph_(album)
   
   
2. 
   Petroglyph
   Petroglyphs (also called rock engravings) are pictogram and logogram images created by removing part of a rock surface by incising, picking, carving, and abrading. Outside North America, scholars often use terms such as "carving", "engraving", or other descriptions of the technique to refer to such...
   Found op http://en.wikipedia.org/wiki/Petroglyph
   
   
3. 
   Petroglyph
   an image carved or pecked into a rock face using tone tools.
   Found op http://www.encyclo.co.uk/visitor-contributions.php
   
   
4. 
   petroglyph
   (from the article `pictography`) ...of all details not necessary for the expression of the communication. (Pictographs that are drawn or painted on rocks are known as petrograms; ... [9 related articles]
   Found op http://www.britannica.com/eb/a-z/p/51
   
   
5. 
   petroglyph
   petroglyph, petroglyphic A rock-carving (usually prehistoric).
   Found op http://www.wordinfo.info/words/index/info/view_unit/1620/2
   
   

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