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Definition of quadrant

quadrant

/ˈkwɑːdrənt/
quad · rant
Plural:quadrants
•
Adjective:quadrantal
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quadrant Lexical Profile

quadrant Game Scores & Validity

• noun

1

Any of the four regions into which a plane, map, body cavity, or space is divided by two perpendicular axes or lines.

Example

"Points located in the upper-right quadrant of a Cartesian coordinate graph have positive values for both x and y."

2

Each of four quarters of a circle, or a plane figure bounded by two perpendicular radii and the arc between them, subtending an angle of 90 degrees.

Example

"To calculate the total area of the garden, we first measured the radius of the circular quadrant."

3

An astronomical and navigational instrument consisting of a graduated arc of 90 degrees with a sighting mechanism, historically used for measuring the altitude of celestial bodies.

Example

"Before the invention of the sextant, mariners relied on a brass quadrant to determine their latitude at sea."

Synonyms
View all synonyms for quadrant

• Nearby Words

quadcopter
quadrangle
quadrangular
quadrant
quadraplex
quadratic
quadratics

Word Origin & Etymology

Borrowed in Middle English from Latin quadrāns (stem quadrant-), meaning 'a fourth part or quarter,' derived from quattuor ('four').

Cite this Entry

Wordmom. (2026). Definition of Quadrant. In Wordmom Dictionary. Retrieved Nov 5, 2026, from https://wordmom.com/dictionary/quadrant
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