Ma'anar ƙamus na CNS shine:CNS: Taƙaice don Tsarin Jijiya ta Tsakiya. CNS wani bangare ne na tsarin jijiyoyi wanda ya hada da kwakwalwa da kashin baya, kuma yana da alhakin sarrafawa da daidaita bayanai daga gabobin jiki da sarrafa martanin jiki.
