quad ‧ rant /ˈkwɒdrənt $ ˈkwɑː-/ BrE AmE noun [countable]
[ Date: 1300-1400 ; Language: Latin ; Origin: quadrans 'fourth part' ]
1 . a quarter of a circle
2 . an instrument for measuring angles, used when sailing or looking at the stars
quad ‧ rant /ˈkwɒdrənt $ ˈkwɑː-/ BrE AmE noun [countable]
[ Date: 1300-1400 ; Language: Latin ; Origin: quadrans 'fourth part' ]
1 . a quarter of a circle
2 . an instrument for measuring angles, used when sailing or looking at the stars
Longman Dictionary of Contemporary English. Longman - Словарь современного английского языка. 2012