III.spiral <forma in -ing ecc. spiralling, spiralled brit. angl. spiraling, spiraled am. angl.>[brit. angl. ˈspʌɪr(ə)l, am. angl. ˈspaɪrəl]GLAG.nepreh. glag.
Then inside their paper citadels, young people break out spiral notebooks to sketch even larger hideouts, detailing where their seaplanes will dock and where the ping-pong table will go.
There are many schools where interactive whiteboards have replaced chalkboards, computers support research in libraries, and electronic grade-books have supplanted spiral notebooks.