| ASTROSPHERE | • astrosphere n. A cavity filled with hot gas blown into the interstellar medium by stellar winds. • ASTROSPHERE n. another name for a centrosome. |
| BATHYSPHERE | • bathysphere n. A spherical steel deep-diving chamber with perspex windows, in which persons are lowered to the depths… • BATHYSPHERE n. a submersible observation chamber. |
| BLOGOSPHERE | • blogosphere n. (Internet) The totality of blogs, especially the unique jargons, cultures and shared interests created… • BLOGOSPHERE n. the part of the World Wide Web that contains weblogs. |
| CHEMOSPHERE | • chemosphere n. The region of the Earth’s atmosphere (from 20 to 120 miles above the surface) in which photochemical… • CHEMOSPHERE n. the thermosphere, the outermost layer of the atmosphere. |
| COSMOSPHERE | • cosmosphere n. An apparatus for showing the position of the Earth with respect to the fixed stars, consisting of a… • COSMOSPHERE n. an apparatus for showing the position of the earth at any given time with reference to the fixed stars. |
| HELIOSPHERE | • heliosphere n. (Astronomy) The region of space where interstellar medium is blown away by solar wind; the boundary… • HELIOSPHERE n. the region in space influenced by the sun or solar wind. |
| HYDROSPHERE | • hydrosphere n. All the liquid waters of the Earth, as distinguished from the land and the gases of the atmosphere. • HYDROSPHERE n. the water of the earth. |
| ISODIAPHERE | • ISODIAPHERE n. one of two or more nuclides with the same difference between the totals of neutrons and protons. |
| LITHOSPHERE | • lithosphere n. (Geology) The rigid, mechanically strong, outer layer of the Earth; divided into twelve major plates. • LITHOSPHERE n. the solid outer portion of the Earth consisting of the crust and upper mantle, approximately 100 km (62 miles) thick. |
| MICROSPHERE | • microsphere n. Any sphere whose size is measured in micrometres. • MICROSPHERE n. a small sphere. |
| OZONOSPHERE | • ozonosphere n. A layer in part of the stratosphere that has a larger than normal concentration of ozone; the ozone layer. • OZONOSPHERE n. the ozone layer. |
| PHOTOSPHERE | • photosphere n. (Astronomy) A visible surface layer of a star, and especially that of a sun. • PHOTOSPHERE n. the sun's luminous envelope. |
| PLANISPHERE | • planisphere n. Any representation of part of a sphere on a plane surface. • planisphere n. (Astronomy) Any of several charts of the celestial sphere having an overlay or window that may be adjusted… • PLANISPHERE n. a sphere projected onto a plane; a map of the heavens. |
| RHIZOSPHERE | • rhizosphere n. (Soil science) the soil region subject to the influence of plant roots and their associated microorganisms. • RHIZOSPHERE n. a region of increased biological activity in the neighborhood of a root. |
| TITANOTHERE | • titanothere n. A member of the Titanotheriidae, a family of extinct mammals related to horses and rhinoceroses. • TITANOTHERE n. any of various very large extinct horselike perissodactyl mammals. |
| TROPOSPHERE | • troposphere n. The lower levels of the atmosphere extending from the surface of the Earth or another celestial body… • TROPOSPHERE n. a region of the atmosphere from 25,000 feet to 55,000 feet, the boundary between the upper troposphere and the lower stratosphere. |