An Etymological Dictionary of Astronomy and Astrophysics
English-French-Persian

To draw a line around; encircle.

L. circumscribere "to draw a line around, confine," from → circum- + scribere "write," from PIE *skreibh-, from *sker- "to cut, incise."

Pirâkašidan, from pirâ-, → circum- + vešidan "to write," → inscribe.

A sphere containing a polyhedron (such as a pyramid) all of whose vertices lie on the surface of the sphere. The polyhedron so contained is said to be inscribed in the sphere.

Circumscribed p.p. of → circumscribe; → sphere.