A broadly spherical object or region.
[English sphere, derived from Greek sphaira, ball.]
The larger proportion of common words in -sphere refer to the Earth, such as atmosphere or biosphere. Several others refer to regions of a star, such as photosphere. Others are general terms relating to a spherical object or region: hemisphere. For more details and additional examples, Adjectives are formed either in -speric (atmospheric, ionospheric), or less commonly in -spherical (hemispherical).
Examples of words in -sphere
Word origins are from Greek unless otherwise stated.
|atmosphere||the envelope of gases surrounding the earth or another planet||atmos, vapour|
|biosphere||the regions of the surface and atmosphere of the earth or another planet occupied by living organisms||bios, life|
|hemisphere||a half of a sphere||hēmi-, half|
|ionosphere||the layer of the earth's atmosphere which contains a high concentration of ions and free electrons and is able to reflect radio waves||English ion|
|lithosphere||the rigid outer part of the earth, consisting of the crust and upper mantle||lithos, stone|
|magnetosphere||the region surrounding the earth or another astronomical body in which its magnetic field is the predominant effective magnetic field||English magnet|
|photosphere||the luminous envelope of a star from which its light and heat radiate||phōs, phōt-, light|
|stratosphere||the layer of the earth's atmosphere above the troposphere, extending to about 50 km above the earth's surface||Latin stratus, strewn|
|troposphere||the lowest region of the atmosphere, extending from the earth's surface to a height of about 6-10 km||tropos, turning|