GLOSSARY OF SCIENTIFIC TERMS. 1251 



Cyst, Cystis — A small bladder or sac ; applied to those containing mor- 

 bid matter or parasites, which become encysted, or inclosed in an 

 envelop. 



Cystic Duct — The duct which proceeds from the gall bladder, uniting 

 with the hepatic duct. 



Cystitis — Inflammation of the bladder. Cystoplegia is paralysis of the 

 bladder. 



Debility — The condition of weakness or feebleness. 



Decoction — Extraction of the soluble parts of substances by boiling. 



Decompose — To decay. To separate into component parts. 



Defecation — Purifying from impurities of foreign matter. Voidnig the 

 excrement from the body. 



Degenerate — To become worse or inferior. 



Deleterious — Injurious, poisonous or destructive. 



Delirium — Insanity ; a wandering of mind in disease. 



Deliquescent — Any salt which becomes liquid by attracting moisture from 

 the air. 



Demulcent — That which sheaths and protects irritated surfaces. 



Dens — A tooth. Dental : pertaining to the teeth. Dentition : the de- 

 velopment of the teeth, 



Depilitory — Any agent or thing which causes the loss of the hair. 



Dermal — Belonging to the skin. 



Desiccate — To make dry by heat. 



Detergents — Medicines having the power of cleansing the vessels or skin. 



Develop — To increase. A disease develops its intensity. To show 

 increasing muscular form. Bringing to perfection. 



Diabetes — An excessive flow of urine containing saccharine matter. 



Diagnosis — The distinguishing of one disease from another. 



Diaphoretic — A medicine which causes perspiration or sweating. 



Diaphragm — The midriff. The membrane, or broad muscle, which divides 

 the thorax or chest from the abdomen or belly. 



Diarrhae,a — A continued and profuse discharge from the bowels. 



Diet — Any kind of food or drink. Dietary : a regulated allowance of food. 



Diffuse — To extend or drive out. That which may flow or si)read, as a 

 diffusible stimulant. 



Digestion — The separation and dissolving of the food in the stomach. 

 Digestive ointment has the power of resolving tumors. 



Dilate — To open wide, as dikition of the eye. 



Dilatation — The expanding of a body, as of the heart, arteries, the blad- 

 der, etc , from over-fullness. 



Dilute — To make thin, as a medicine with water, with oil, etc. 



Diminution — A lessening, or decreasing, as of pain, etc. 



