plural of circular sector

plural of circle sector

plural of married sector

(astronomy) Synonym of zenith telescope

(mathematics) An area on a plane bounded by two rays from the origin and a rectangular hyperbola.

plural of hyperbolic sector

plural of zenith sector

A principle in international law where international boundaries are extended over sea areas in the Arctic towards the North Pole following meridians (lines of longitude). The same principle is used over land in the Antarctic to the South Pole.

(computing) The recording of layout data onto a magnetic or optical recording medium in order to designate the sector locations, as opposed to using physical marks or holes.

(computing) The use of a physical mark or hole to reference sector locations within a magnetic or optical recording medium.