quadrant
//ˈkwɒd.rənt//
Noun
quadrantSingular
quadrantsPlural
1
One of four equal parts into which a plane or space is divided by two perpendicular lines or axes.
The point is located in the first quadrant of the coordinate plane.
2
A quarter of a circle or its circumference; an arc of 90 degrees.
The pie chart was divided into four quadrants, each representing 25% of the total.
3
A navigational or surveying instrument used for measuring angles, typically consisting of a graduated arc of 90 degrees.
The sailor used a quadrant to measure the angle of the sun above the horizon.
4
Any of the four regions of the abdomen or other body part divided by imaginary lines for medical reference.
The doctor noted tenderness in the lower right quadrant of the abdomen.