n.
1.a quarter of the circumference of a circle
2.a quarter of the circumference of a circle
3.any of the four areas into which a plane is divided by two orthogonal coordinate axes
4.the area enclosed by two perpendicular radii of a circle
5.a measuring instrument for measuring altitude of heavenly bodies
Idiom of the Day
a number of things or people
an indefinite number of things or people
There were a number of reasons why I did not want to study at my father's university.