Definition of "sphere" []

• Mathematics A three-dimensional surface, all points of which are equidistant from a fixed point. (noun)
• A spherical object or figure. (noun)
• A celestial body, such as a planet or star. (noun)
• The sky, appearing as a hemisphere to an observer: the sphere of the heavens. (noun)
• Any of a series of concentric, transparent, revolving globes that together were once thought to contain the moon, sun, planets, and stars. (noun)

American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

• "See additional notes, No. VI.] [_Or sphere on sphere_. l."
• "Must I be comforted, not in his sphere] I cannot be united with him and move in the same _sphere_, but _must be comforted_ at a distance by the _radiance_ that shoots _on all sides_ from him."
• "Other sphere is around our personal presentation of self."