Parallel sphere

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(Astron. & Geog.) that position of the sphere in which the circles of daily motion are parallel to the horizon, as to an observer at either pole.

See also: Parallel

Webster's Revised Unabridged Dictionary, published 1913 by G. & C. Merriam Co.
References in periodicals archive ?
Thus, the parallel sphere was omnipresent in social life, and in everyday life, people could migrate between the official and hidden spheres.
It also lacks the resources to take action against those who work in parallel spheres to their own.
At times the men and women share parallel spheres of authority, and at times subordinate ones.
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