midsphere

Meaning

Noun

• A middle sphere or region.
• The sphere which, if it exists, is tangent to every edge of a given polyhedron and with respect to which the polyhedron's vertices are the inversion poles of the planes of the faces of its dual polyhedron (and vice versa).
• The sphere, between two given spheres, by which each of the latter may be inverted into the other.
• A supposed realm between earth and heaven.

Related

Similar words

• intersphere, inversion sphere, reciprocating sphere
• sphere of antisimilitude

Origin

• From mid- + sphere.