• synonyms


[kwod-ruh t]
  1. Printing. quad2(def 1).
  2. Ecology. a square or rectangular plot of land marked off for the study of plants and animals.
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Origin of quadrat

First recorded in 1675–85; variant of quadrate
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

Examples from the Web for quadrat

Historical Examples of quadrat

  • The rote of the most quadrat conteynede vndre the nombre proposede.

    The Earliest Arithmetics in English


  • The more meene thus, as to brynge the rote of the lesse into a quadrat of the more.

  • And here-by it is open that o nombre is the roote of a quadrat and of a cubike.

  • The lesse thus, If the rote of the more be brought Into the quadrat of the lesse.

  • The German is No. 30 Quadrat, which is rendered approximately by the above.

British Dictionary definitions for quadrat


  1. ecology an area of vegetation, often one square metre, marked out for study of the plants in the surrounding area
  2. the frame used to mark out such an area
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Word Origin for quadrat

C14 (meaning "a square"): variant of quadrate
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Word Origin and History for quadrat


"a blank, low-cast type used by typographers to fill in larger spaces in printed lines," 1680s, from French quadrat "a quadrat," literally "a square," from Latin quadratrus, past participle of quadrare "to square, make square" (see quadrant). Earlier in English it meant a type of surveying instrument (c.1400).

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Online Etymology Dictionary, © 2010 Douglas Harper