Here you will find one or more explanations in English for the word Undersphere.
Also in the bottom left of the page several parts of wikipedia pages related to the word Undersphere and, of course, Undersphere synonyms and on the right images related to the word Undersphere.
Undersphere
Undersphere Un"der*sphere`, n.
1. A sphere which is smaller than, and in its movements
subject to, another; a satellite.
2. An inferior sphere, or field of action.
Meaning of Undersphere from wikipedia
