GLOSSAKY 



561 



Trapezoid (Gr. ti-apcza, a tahle, and fidos, form), one 

 of the bones oi the knee. 



Traumatic {Gr. traumaiikos — trauma, a wound), 

 ■caused iiy a wound or injury. 



Trichiasis (Gr. (hrix, a hair), abnormal direction of 

 the eyelashe-s, producint^ friction and inflammation of 

 the globe. 



Tricophjrton (Gr. thrix, a hair, and phi/ton, a plant), 

 a germ or vegetable organism, parasitic upon the hair 

 — Tricophifton toiisarans is what causes ringworm. 



Tricuspid (Lat. tres, three; cuspis, point), having 

 three cusps ; as the tricuspid valve in the aortic and 

 2>ulmonary artery. 



Trismus (Gr. trismos, trlzcin, to gnash), spasm of 

 the nniscles of mastication, locked jaw. 



Trochanter (Gr. trochanter, trochos, a wheel or 

 ■pulley), tile process of bone on the upper extremity 

 and sides of the femur or thigh-bone. 



Trochlea (Gr. trochilca. a wheel or pulley), a part 

 having tlie nature of a pulley. 



Trypsin (Gr. tr'ipsis, a rubbing), a substance which 

 converts proteids into peptones; the ferment of pan- 

 creatic juice. 



Tuber (Lat. tuhcr, a bump or swelling), a tliickened 

 portion of an underground stem, as the potato. 



Tuberculin (Lat. tuhcrmlum, a tubercle), a gly- 

 cerine extract of cultures of the Bacillus tuberculosis. 



Tuberculosis (Lat. tuberculum, a tubercle), the 

 infectious disease corresponding to what is commonly 

 called consumption, and due to Bacillus tuberculosis, 

 discovered by Koch in 1S82. 



Turbinated (Lat. turbo, a top), top-shaped. 



Tympany (Gr. tympanon, drum), distension of an 

 oi-g;in or part with gas. 



Tyrosus (Gr. tyros, cheese), a substance occurring 

 in pancreatic digestion, a decomposition product of 

 proteids. 



u 



Ulna (Lat., a cubit), tlie small bone of tlie forearm 

 or horse's foreleg, its companion bone being the radius. 



Umbilicus (Lat.), the navel. 



Ungrulate (Lat. unr/ula, a hoof), having hoofs. 



Urea (Gr. ouron, urine), the chief solid constituent 

 of tile urine. 



Urethra (Gr. ourSthra, urethra), the canal extending 



from the bladder to the end of the penis, through 

 which the urine is discharged. 



Urticaria (Lat. urtica, a nettle), nettlerash, a dis- 

 ease of the skin characterized by wheals. 



V 



Vaccinia {Lat. racca, cow), cowpox. 



Valvulitis (Lat. rah-ida, a small valve ; itis, in- 

 flammation), inflammation of the valves of the heart. 



Varicose (Lat. varix, a varix), showing varices or 

 dilatations; abnormally dilated, as a vein. 



Vegetations (Lat. ver/ctatio, verjere, to grow), a name 

 applied to morbid growths, such as abnormal granula- 

 tions, excrescences, warts, &c. 



Vena cava (Lat. vena, vein, cavns, hollow), a name 

 for tlie two large veins entering the heart. 



Ventricle (Lat. ventrlculus, dim. of venter, a belly), 

 the name for the two lower cavities of the heart. 



Vertig'O {Lat. vertere, to turn), giddiness, dizziness. 



Vesicle (Lat. vesica, bladder or blister), a small 

 blister-like formation. 



Vibrio (Lat. vibrarc, to vibrate), a genus of Schizo- 

 mycetes similar to Spirillum. 



Virus (Lat.), a poison that causes a morbid process 

 or disease; any pathological microbe. 



Vitreous humour (Lat. vitrum, glass ; humor, fluid), 

 the transparent gelatin-like substance that fills the 

 posterior chamber of the eye. 



Volition (Lat. voUtio, will), determination to act; a 

 willing to do or not to do something. 



Vomer (Lat., a ploughshare), the bone situated in 

 the middle of the nostrils. 



Vulva (Lat.), the female pudendum, or posterior 

 part of the genital passage. 



X 



Xiphoid (Gr. xlphos, sword ; eidos, like), sword- 

 shaped ; applied to the flat piece of cartilage behind 

 the sternum. 



Zygomatic (Gr. zygoma, zygoma), pertaining to the 

 zygoma or cheek-bone. 



