*Choose Index below for a list of all words and phrases defined in this glossary.*

**quadrant** -

(1) [coordinate systems] In a rectangular coordinate system, any of the quarters formed by the central intersection of x and y axes that divide a plane into four equal parts.

(2) [Euclidean geometry] One quarter of a circle measured from the center, having an arc of 90 degrees.

[Category=Geospatial ]

*Source: esri, 21 July 2012 11:00:33, http://support.esri.com/en/knowledgebase/GISDictionary/term/abbreviation *

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