- circuit of a matroid
- circuit postulate
- circuit problem
- circuit switching
- circulant graph
- circulant matrix
- circular arc
- circular argument
- circular cone
- circular cone
- circular conical helix
- circular conoid
- circular conoid
- circular cylinder
- circular cylindrical surface
- circular definition
- circular disc iterative method
- circular domain
- circular frequency
- circular frequency of structure
- circular function
- circular helicoid
- circular helix
- circular permutation
- circular permutation