1592952564000 1312632483000 term-3741 1616541388718 1312632488000 1616290278802 adlib fitz-online adlib-term-3741 a4bc66ea-cc9f-3e99-9ed5-a19d9695255a 2 1 scope note Instruments for measuring altitudes, usually consisting of a graduated arc of 90 degrees, a pair of sights, and a plumb bob. reference term-88615 adlib-term-88615 66748b7b-f81c-3dac-b8f9-7582c41232c4 quadrant V.TN.AFU.AFU.AFU.AFU.CLM.BOK 1 code V.TN.AFU.AFU.AFU.AFU.CLM.BOK 1 quadrants reference term-88620 adlib-term-88620 130506cf-7a4e-3d48-833d-62079529940a <vertical angle measuring devices> quadrants term