closure section - command
- coefficient of permeability
- coefficient of reflection
- coefficient of resistance
- coefficient of self-induction
- coefficient of shear
- coefficient of thermal conductivity
- coefficient of utilization
- coefficient of viscosity
- coelonavigation
- coelostat
- coelostat mirror
- coenenchyma
- coercible gas
- coercimeter
- coercive force
- cofactor
- coffee
- coffee extract
- coffee grinder
- coffee mill
