a quarter of the circumference of a circle
a measuring instrument for measuring altitude of heavenly bodies
any of the four areas into which a plane is divided by two orthogonal coordinate axes
the area enclosed by two perpendicular radii of a circle
an unofficial association of people or groups
a road junction at which traffic streams circularly around a central island
form or draw a circle around
street names for flunitrazepan
any circular or rotating mechanism
movement once around a course
a curved section or tier of seats in a hall or theater or opera house; usually the first tier above the orchestra
ellipse in which the two axes are of equal length; a plane curve generated by one point moving at a constant distance from a fixed point
move in a circular path above (someone or something)
something approximating the shape of a circle
travel around something
