central africa; central african republic; central african republic franc; central america; central american; central american country; central american nation; central american strap fern; central artery of the retina; central bank; central body; central chimpanzee; central city; central dravidian; central gyrus; central heating; central intelligence agency; central intelligence machinery; central nervous system; central office; central park; central powers; central processing unit; central processor; central scotoma; central standard time; central sulcus; central thai; central time; central vein of retina; central vein of suprarenal gland; central veins of liver; central vision;