| equator |
any similar circle around a planet or other sphere. [1/2 definitions] |
| ghetto |
a sphere, activity, occupation, or the like in which people feel isolated or restricted, as if in a ghetto. [1/3 definitions] |
| great circle |
a circle on a sphere that is in a plane passing through the center of the sphere. [1/2 definitions] |
| hemisphere |
a half of any sphere. [1/3 definitions] |
| importation |
the process of drawing something from one area, country, sphere of activity, or the like, to be used in another. [1/2 definitions] |
| meridian |
a similar circle that passes through the poles of the celestial sphere. [1/7 definitions] |
| nadir |
the point on a heavenly sphere directly below a specified position on the earth's surface and at the other end of the diameter drawn from the zenith. [1/2 definitions] |
| North Pole |
the point on the celestial sphere that is intersected by a northward extension of the earth's axis. [1/4 definitions] |
| orb |
to make into the form of a sphere. [1/3 definitions] |
| orbit |
a sphere or area of experience, knowledge, control, or power. [1/7 definitions] |
| planisphere |
a maplike projection of all or part of a sphere on a plane surface. [2 definitions] |
| purview |
the sphere, extent, or scope of anything, such as authority or understanding. [1/2 definitions] |
| radial |
a line passing from the center to the perimeter of a circle or from the center to the surface of a sphere; radius. [1/7 definitions] |
| radius |
a straight line segment extending from the center to the surface of a sphere or from the center to the circumference of a circle. [1/7 definitions] |
| range |
the sphere or scope of activity or functioning of something. [1/20 definitions] |
| realm |
sphere; province. [1/2 definitions] |
| region |
an area of interest or focus; sphere. [1/4 definitions] |
| restricted |
limited or confined within a certain sphere. [1/2 definitions] |
| rhumb line |
the curved line on the surface of a sphere, indicating the path of a ship or plane that maintains a fixed compass direction, which crosses all meridians on a globe or map at the same angle. |
| seventh heaven |
in certain religions, an outer sphere that encloses the earth and is considered to be where God and the highest angels dwell. [1/2 definitions] |
| South Pole |
the point on the celestial sphere that is intersected by a southward extension of the earth's axis. [1/4 definitions] |