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n combining form
1. having the shape or form of a sphere: bathysphere.
2. indicating a spherelike enveloping mass: atmosphere.
-spheric adj combining form
n., v. sphered, spher•ing. n.
a. a solid geometric figure generated by the revolution of a semicircle about its diameter; a round body whose surface is at all points equidistant from the center.
b. the surface of such a figure; a spherical surface.
2. any rounded, globular body.
a. a planet or star; heavenly body.
c. any of the transparent, concentric, spherical shells, or layers, in which, according to ancient belief, the planets, stars, and other heavenly bodies were set.
4. the environment within which a person or thing exists, acts, or operates.
5. a field of something specified: a sphere of knowledge.v.t.
6. to enclose in a sphere.
7. to form into a sphere.
8. to place among the heavenly spheres.
[1275–1325; < Old French espere < Late Latin spēra, Latin sphaera globe < Greek sphaîra]
a combining form meaning “sphere,” “something spherical in shape” (hemisphere), used esp. in the names of the concentric layers of gases, water, rock, etc., characteristic of the earth or other celestial bodies (ionosphere; lithosphere).