quadratPronunciation: /ˈkwɒdrət/Definition of quadrat noun Ecology each of a number of small areas of habitat, typically of one square metre, selected at random to act as samples for assessing the local distribution of plants or animals. a portable frame, typically with an internal grid, used to mark out a quadrat. Origin: early 20th century: variant of quadratequadrat in other Oxford dictionaries Definition of quadrat in the US English dictionary
