Meaning of the word quadrant in English

What does quadrant mean in English? Explore the meaning, pronunciation, and specific usage of this word with Lingoland.

quadrant

US /ˈkwɑː.drənt/
UK /ˈkwɒd.rənt/
"quadrant" picture

Noun

1.

each of four parts of a circle, plane, or sphere divided by two lines or planes at right angles

Example:
The graph is divided into four quadrants.
The point (3, -2) lies in the fourth quadrant.
2.

an instrument for measuring angles, typically in astronomy and navigation, consisting of a graduated arc of 90 degrees with a sighting mechanism

Example:
Ancient mariners used a quadrant to determine their latitude.
The astronomer adjusted the quadrant to measure the star's altitude.