Kalmar "lemniscus" tana nufin wani gungu ko bandeji na jijiyoyi masu ƙetare kwakwalwar kwakwalwa kuma suna shiga cikin tsinkaye, musamman ma wajen watsa bayanan da suka shafi tabawa, zafi, da zafin jiki daga kashin baya zuwa thalamus. Kalmar "lemniscus" ta samo asali ne daga kalmar Helenanci "lemniskos," ma'ana "ribbon" ko "fillet," wanda ke kwatanta siffar jijiyar fiber daure.
