Cylinder

(sil' -in-der). A long, circular body. See, also, Lenses. C.-cone of Kuhnt, one of the conical sections marked off by the " incisures" and going to build up the annular segments of a medullated nerve-fiber. C. -filling, a filling, the material of which is composed of gold-foil or tin-foil cylinders, sometimes called block-filling. C. of Gold-foil, a form of gold-foil for filling teeth, made by rolling a tape of non-cohesive gold upon a fine broach, commencing at one end of the tape and continuing the movement until the desired size of the cylinder is reached.