അർത്ഥം : A quarter of the circumference of a circle.
പര്യായപദങ്ങൾ : quarter-circle
അർത്ഥം : Any of the four areas into which a plane is divided by two orthogonal coordinate axes.
അർത്ഥം : The area enclosed by two perpendicular radii of a circle.
അർത്ഥം : A measuring instrument for measuring altitude of heavenly bodies.