What does .C stand for?

What does .C mean?

C	Critical Medical » Physiology
C	Cervical Medical » Physiology
C	Constriction Medical » Physiology
C	Cholesterol Medical » Physiology
C	Coronary Medical » Physiology
C	Contraction Medical » Physiology
C	Cunning Governmental » Police
C	Cronies Governmental » Police
C	Compromise Governmental » Politics
C	Constituent Governmental » Politics
C	Controversy Governmental » Politics
C	Conservative (party member) Governmental » Politics
C	Commons (designating bills introduced in the House of Commons) Governmental » Politics
C	Commitment Business » Positions
C	Chairman Business » Positions
C	Cardinal Business » Positions
C	Compensation Business » Positions
C	Communicator Business » Positions
C	Cook Business » Positions
C	Captain Business » Positions
C	Commandant Business » Positions
C	cum (Lat.) with Medical » Prescription
C	Crushing Business » Products
C	Chanel Business » Products
C	Complexity Business » Products