1. 
   Quadrat
   A sampling unit used to assess density of organisms.
   Found op http://www.blackwellpublishing.com/Townsend/Glossary/GlossaryQ.html
   
   
2. 
   Quadrat
   Quad'rat noun [ French quadrat , cadrat . See Quadrate .] 1. (Print.) A block of type metal lower than the letters, -- used in spacing and in blank lines. [ Abbrev. quad.] 2. An old instrument used for taking ...
   Found op http://www.encyclo.co.uk/webster/Q/1
   
   
3. 
   quadrat
   Sample units or plots that vary in size, shape, number and arrangements, depending on the nature of the vegetation, site conditions and purpose of study. ... (09 Oct 1997) ...
   Found op http://www.mondofacto.com/facts/dictionary?quadrat
   
   
4. 
   Quadrat
   • (n.) A block of type metal lower than the letters, -- used in spacing and in blank lines. • (n.) An old instrument used for taking altitudes; -- called also geometrical square, and line of shadows.
   Found op http://thinkexist.com/dictionary/meaning/quadrat/
   
   
5. 
   Quadrat
   A quadrat is a square (of either metal, wood, or plastic) used in ecology and geography to isolate a sample, usually about 1m2 or 0.25m2. The quadrat is suitable for sampling plants, slow-moving animals (such as millipedes and insects), and some aquatic organisms. When an ecologist wants to know ho...
   Found op http://en.wikipedia.org/wiki/Quadrat
   
   
6. 
   Quadrat
   a small sample plot, usually square or rectangular (Ralph 1980:578).
   Found op http://www.npwrc.usgs.gov/resource/literatr/avian/glossary.htm
   
   
7. 
   Quadrat
   a sampling unit used to measure the number of individuals within a specific area.
   Found op http://www.coml.org/edu/glossary/g1.htm
   
   
8. 
   Quadrat
   [hieroglyph block] A quadrat block (or quadrate block) is a virtual rectangle or square in Egyptian hieroglyphic text. The glyphs (hieroglyphs) can be variable in number within the virtual block, though they are often proportioned according to variable standardized rules of scribal methods. ...
   Found op http://en.wikipedia.org/wiki/Quadrat_(hieroglyph_block)
   
   

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