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BNC: 17036 COCA: 15633

quadrant

Word family 
Related topics: Maths, Astronomy, Water
quad·rant /ˈkwɒdrənt $ ˈkwɑː-/ noun [countableC]
1. AAHMa quarter of a circle 四分之一圓(周)；九十度弧 →5 see picture at 見圖 circle1
2. HATTWan instrument for measuring angles, used when sailing or looking at the stars 〔航海或觀星時用的〕象限儀
Examples from the Corpus
quadrant• In the first grid fill in each quadrant with the appropriate work activities in your present position.• Each quadrant of the labyrinth comprises four main meanders.• Curves which are monotonic and contain only one bend can be thought of as one of the four quadrants of a circle.• The four quadrants are no longer symmetrical.• In the early eve-ning, just as the stars were coming out, he would often pull out his quadrant and compass.• He tried dividing the lake into quadrants, carefully inspecting each quadrant.• I probably made do by blunting a good deal of what I saw and navigating with intuitive quadrants.• the town's southwest quadrant• The other three quadrants are the same, as for J 2.
Origin quadrant
(1300-1400) Latin quadrans “fourth part”
quad·rant noun
Syllable
Corpus

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