One fourth of a circle or disc; a sector with an angle of 90°.
One of the four regions of the Cartesian plane bounded by the x-axis and y-axis.
A measuring device with a graduated arc of 90° used in locating an altitude.
One of the four categories of team wins and losses, as categorized by strength of schedule.
One of the four sections made by dividing an area with two perpendicular lines.
One sixth of a circle or disc; a sector with an angle of 60°.
A navigational device for deriving angular distances between objects so as to determine latitude and longitude.
One of six groups of adjacent teeth, excluding the wisdom teeth. The front sextants go from canine to canine, and there are sextants on the right and left of these. See w:Periodontal examination.