GLOSSARY 



559 



Ptomaine (Gr. ptoma, corpse), any of the toxic or 

 poisonous substances resulting from the decomposi- 

 tion or decay of animal matter. 



Ptyalin (Gr. ptyalon, saliva), a ferment found in 

 saliva, having the property of converting starch into 

 sugar. 



Pubis (Lat.), the os pubis or pubic bone at the lower 

 part of the abdomen and connected with the pelvis. 



Pupa (Lat. pupa, a doll), the second stage of de- 

 velopment from the egg of those insects which undergo 

 complete metamorphosis ; the chrysalis. 



Pupil (Lat. pupi/hi), the round opening admitting 

 light in tlie iris of the eye. 



Purpura (Lat. ptn-puni), an eruption of purple 

 spots in tlie skin. Purpura hsemorrliagica, an aggra- 

 vated form of purpura extending over the whole body. 



Pylorus (Gr. ptjloros, gatekeeper), the outlet or 

 opening of the stomach into the duodenum. 



Pyriformis (Lat. pyru», pear; forma, a form), pear- 

 shaped ; a term applied to a muscle within the pelvis. 



R 



Racemose (Lat. raccnms, a bunch of grapes), having 

 a shape resembling a bunch of grapes. 



Radius (Lat. radins, a staff, rod, spoke), one of the 

 two large bones of the forearm ; in the horse, a bone 

 of tlie foreleg between the humerus and the knee. 



Receptive (Lat. rcciperc, to receive), having the 

 quality for receiving. 



Rectum (Lat. rectus, straight), the posterior part 

 of the large intestine. 



Recurrent (Lat. rccurrere, to run back), recurring, 

 reappearing. 



Reflex (Lat. reflcxus, thrown back), applied to the 

 action of a part upon the application of a stimulus 

 to another and distant part. 



Regurgitation (Lat. re, again ; gurgitare, to en- 

 gulf), an eructation or throwing back. 



Renal (Lat. rcnalis — ren, a kidney), pertaining to 

 the kidneys. 



Repellent (Lat. repellere, to repel), having the 

 power to repel morbid processes. 



Rete mucosum (Lat. rctc, a net; mucus, mucous), 

 the lower layer of living cells in the epidermis. 



Rhizome (Gr. rhiza, root), a subterranean stem 

 having roots at its nodes and a bud at its apex. 



Rugae (Lat., wrinkles), foldings or creasings of an 

 organ, as in the mucous membrane of the stomach, 

 &c. 



Rumination (Lat. ruminare, to chew the cud), the 

 chewing of the cud, the returning of the food from 

 the stomach and its remastication. 



s 



Saccharomyces (Gr. saccharon^ sugar, and mi/fces, 

 fungus), a unicellular vegetable organism similar to 

 the yeast plant. 



Sacrum, (Lat. saccr, sacred), a triangular bone com- 

 posed of five pieces (vertebrie), forming a portion of 

 the vertebral column (spine or backbone), and be- 

 louLjini,^ to the pelvis. 



Sagrittal (Lat. sagitta, an arrow), referring to the 

 suture unitini^ the parietal bones. 



Sanguine (Lat. sanguis, blood), applied to an active, 

 energetic disposition. 



Sapid (Lat. sapere, to taste), capable of being tasted; 

 having taste or savour. 



Sarcinococcus (Lat. mirhia, a bundle), a name of 

 round or ovoid bacteria dividing in three directions. 

 producing cubic masses of various sizes. 



Sarcolemma (Gr. sarx, flesh, and Icmum, husk), the 

 membrane that envelops a muscle fibre. 



Sartorius (Lat. sartor, tailor), a long slender 

 muscle situated on the inner and front part of the 

 thigh. 



Scaphoid (Gr. scaphe, boat, and eidos, shape), a 

 bone of the knee. 



Scarification (Lat. searificare, to scarify), to punc- 

 ture a swollen part with a sharp scalpel, to let out 

 effused serum, blood, or gases. 



Schneiderian membrane {from a German anato- 

 mist, Schneider)^ the membrane lining the nose. 



Scirrhus (Gr. skirrkos, a tumour), a kind of cancer, 

 a hard cancer. 



Scleroderma (Gr. sklei-os, hard, and derma, skin), a 

 disease in \vhich the skin becomes stiff and hard. 



Sclerotic (Gr. skleros, hard), pertaining to the outer 

 white, opaque, coat of the eye. 



Scrotum (Lat.), the pouch containing the testicles. 



Scutiform (Lat. scutus, a shield), shield -shaped. 



Sebaceous (Lat. sebum, suet, fat), pertaining to the 

 fat-secreting glands of the skin. 



Semiology (Gr. snncion, sign; logos, discourse), all 

 that is known in regard to the symptoms of disease. 



Sensory (Lat. scntirc, sensum, to feel), a term applied 

 to a class of nerves which transmit sensation to certain 

 parts. 



Septic (Gr. sepiikos, putrefying), relating to putre- 

 faction. 



Septicaemia (Gr. septos, putrid; haima, blood), a 

 condition of the blood induced by the absorption of 

 septic jiroducts. 



Septum (Lat.). a partition or division wall sepa- 

 rating one cavity from another. 



Sesamoid (Lat. sesamoii, a kind of seed, and eidos, 

 form), resembling a sesame seed, a term for small 

 bones situated in tendons about joints, and others 

 similarly situated. 



Sinus (Lat. simis, a curve, fold, or hollow), a hollow 

 excavation, recess, or pocket in any structure. 



Smegma (Gr. smegma, a cleansing substance), the 

 fatty substance secreted by the sebaceous glands of 

 the prepuce. 



Spasmodic (Gr. spasjnodes), having the nature of a 

 convulsion or spasm. 



Spavin, a disease of bones in which an enlargement 

 appears on the inner and lower part of the hock 

 joint. 



Specific (Lat. species, species ; facere, to make), that 

 which distinguishes a thing, or makes it of the species 

 of which it is. 



Specific gravity, the measured weight of a sub- 

 stance compared with that of an ei[ual volume of 

 another taken as, a standard. 



Spermatic (Gr. spermatikos — spcrma, seed), relating 

 to the semen. 



Spermatozoa (Gr. spcrma, semen; :6on, animal), 

 the essential elements of fecundation. 



Sphenoid (Gr. sphen, wedge, and eidos, likeness), 

 wedge-shaped, relating to the sphenoid bone, an im- 

 jiortant bone of the skull. 



Sphincter (Gr. sphitu/kter, sphingeiti, to squeeze), a 

 muscle surrounding and enclosing an orifice such as 

 the anus. 



Spirillum (Lat. spirillum, a curl), a bacterium whose 

 elements are curved, often forming a spiral of several 

 turns. 



Splint, applied to a bony excrescence on the canon 

 bone of the horse. 



Sporadic (Gr. sporadikos, scattered), applied to 

 diseases which may spread, but which are not epi- 

 demic, and occur here and there. 



Sporozoa (Gr. spora, seed, and zoon, an animal), a 

 class of parasitic protozoa. 



