268 GLOSSARY. 



Se'rous. Having the nature of serum. 



Se'rum. [Lat.] The watery fluid separated from the blood after coagula- 

 tion. 



Ses'amoid. [From the Gr. sesamon, a "seed of the sesamum," and eidos, 

 " form," " resemblance."] Resembling a grain of sesamum. A term 

 applied to the small bones situate in the substance of tendons, near 

 certain joints. 



Sig'moid. From the Gr. letter 2,, sigma, and eidos, " form," " resemblance."] 

 Curved like the letter S. 



Sole'us. [From the Lat. solea, a "sandal."] A name given to a muscle 

 shaped like the sole of a shoe. 



Specific Grav'ity. The comparative density or gravity of one body con- 

 sidered in relation to another assumed as the standard. In measuring 

 the specific gravity of liquids or solids, water is usually taken as the 

 standard of comparison, being reckoned as a unit. 



Sphe'noid. [From the Gr. sphen, a "wedge," and eidos, "form," "resem- 

 blance."] Like a wedge. 



Sphinc'ter. [From the Gr. sphiggo, to "bind tight," to "close."] A circu- 

 lar muscle which contracts the aperture to which it is attached. 



Squa'mous. [From the Lat. squama, a tl scale."] Scale-like. 



Sta'sis. [From the Gr. stad, to "stop."] Stagnation of the blood current. 



Ste'arin. One of the three chief constituents of fat. 



Ster'num. [Lat.] The breast-bone. 



Stim'ulus, pi. Stim'uli. [Lat. a "goad."] Anything that excites to action. 



Sto'ma, pi. Stom'ata. [From the Gr. stoma, stomatos, a " mouth."] A 

 mouth; a small opening. 



Strat'ified. [From the Lat. stratum, a " layer," and facio, to " make."] 

 Formed or composed of strata or layers. 



Stri'ated. [From the Lat. strio, striatum, to "make furrows."] That which 

 has strice, furrows or lines. 



Stro'ma. [From the Gr. stroma, a " bed."] The foundation or bed tissue of 

 an organ. 



Styloglos'sus. [From the Gr. stylos, a " pillar," and glossa, the " tongue."] 

 A muscle connected with a pointed style-like process of the temporal bone 

 and the tongue. 



Subcla'vian. Under the clavicle. 



Subcuta'neous. [From the Lat. sub, "under," and cutis, the "skin."] Under 

 the skin. 



Sudoriferous. [From the Lat. sudor, " sweat," and fero, to " carry," to 

 " bear."] A term applied to the glands secreting sweat. 



Supina'tion. [From the Lat. supino, supinatum, to "bend backwards," to 

 " place on the back."] The turning of the hand with the palm back- 

 wards, the posterior surface of the hand being supine. 



Su'pinators. The muscles which turn the hand with the palm backwards. 



Suprare'nal. [From the Lat. super, "over," and ren, renis, the "kidney."] 

 Above the kidney. 



Su'ture. [From the Lat. suo, sutum, to "sew together."] That which is 

 sewn together, a seam ; the seam uniting bones of the skull. 



