The definition of a quadrant is a fourth or quarter portion of a circle.(noun)
An example of a quadrant is one slice of pie that's been cut into four equal pieces.
See quadrant in Webster's New World College Dictionary
Origin: ME < L quadrans, fourth part < quadrare: see quadrate
See quadrant in American Heritage Dictionary 4
Origin: Middle English, quarter of a day
Origin: , from Latin quadrāns, quadrant-, a fourth part; see kwetwer- in Indo-European roots.
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