n.gymnastic apparatus consisting of a pair of heavy metal circles (usually covered with leather) suspended by ropes; used for gymnastic exercises
"the rings require a strong upper body"
Rings of Continuous Functions
Rings and Categories of Modules
Rings and categories of modules. 2. ed
Lectures on Modules and Rings
Hopf Algebras and Their Actions on Rings
Interactions with Aromatic Rings in Chemical and Biological Recognition
On Automorphisms and Commutativity in Semiprime Rings
On Ideal Lattices and Learning with Errors over Rings
The Dimensions of Chain Molecules Containing Branches and Rings
Generalized many-channel conductance formula with application to small rings
