(sciences) An area of land, marked for studying its plants, animals, soil, natural processes, etc. While originally rectangular, modern quadrats can be rectangular, circular, irregular, etc. (e.g.: Krebs, C.J., 1999. Ecological Methodology. Addison-Welsey Educational Publishing, Inc., Menlo Park, California; Wheater, C.P., Bell, J.R., Cook, P.A., 2011. Practical Field Ecology: A Project Guide. John Wiley and Sons, Chichester, West Sussex, England.)
Other Word Forms of Quadrat
Origin of Quadrat
1683. Probably from French cadrat or Italian quadrato (“square”), originally from Latin quadrātum (“square”). So called because the basic quadrat, the em quadrat, has a square face, having the same width as the height of a line of type.
Middle English a square geometric instrument, rectangular area quadrate
From American Heritage Dictionary of the English Language, 5th Edition
From Latin quadrātum.
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