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   quad·rant

   /ˈkwädr(ə)nt/

   noun

   • 1. each of four quarters of a circle. technical
   • ▪ each of four parts of a plane, sphere, space, or body divided by two lines or planes at right angles: "the right upper quadrant of the kidney"
   • 2. an instrument used for taking angular measurements of altitude in astronomy and navigation, typically consisting of a graduated quarter circle and a sighting mechanism. historical
   • 3. a frame fixed to the head of a ship's rudder, to which the steering mechanism is attached.
   • ▪ a panel with slots through which a lever is moved to orient or otherwise control a mechanism.

   Word Origin late Middle English (denoting the astronomical instrument): from Latin quadrans, quadrant- ‘quarter’, from quattuor ‘four’.

   Derivatives

   • 1. quadrantal adjective

   Scrabble Points: 18

   • Q

     10

   • U

     1

   • A

     1

   • D

     2

   • R

     1

   • A

     1

   • N

     1

   • T

     1

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