Spicula. A small pointed piece of bone.
Spinal Column. The twenty-four bones, which, situated one above the other, form the backbone.
Spinal Cord. Described on [page 90].
Spirometer. A gauge of chest capacity. Illus. [page 392.]
Sponge tent. Compressed, dried sponge previously treated with Gum Arabic, used for dilating the uterine canal.
Sporadic, Sporadically. A term for diseases which appear frequently, independent of epidemic or contagious influences.
Sprain. A straining or rupture of the fibrous parts of a joint.
Staphyloma. Protrusion of the eye, sometimes with loss of sight.
Sterility. Barrenness. Inability to bear children.
Sternum. The breast-bone.