34 2 Life and Health 



Dip'lo-C (Gr. SiTrXoiJ, a fold). The spongy, osseous tissue between the dense 

 outer and inner tables of the skull. 



Dip'so-ma'ni-a (Gr. Stya, thirst, and pavta, madness). The uncontrollable 

 desire for spirituous liquors. 



Dis'in-fec'tants. Agents used to destroy the germs of disease, fermenta- 

 tion, and putrefaction. 



Dis'lo-ca'tion (Lat. dislocare, to put out of place). An injury to a joint 

 in which the bones are displaced or forced out of their sockets. 



Dis-sec'tion (Lat. dis, apart, and secare, to cut). The cutting up of an 

 animal in order to learn its structure. 



Du'o-de'num (Lat. duodcni, twelve). The first division of the small intes- 

 tines, about twelve fingers' breadth long. 



Dys-pep'si-a (Gr. Stfi-, ill, and irtirTeiv, to digest). Disturbed digestion. 



Dysp-nce'a (Gr. 5Js-, difficult, and irvteiv, to breathe). Difficult breathing. 



Effer-ent (Lat. efferre, to carry out). Bearing or carrying outwards, as 



from the center to the periphery. 

 Ef-flu'vi-a (Lat. efflutre, to flow out). Offensive odors coming from the 



body, and from decaying animal or vegetable substances. 

 Ere-ment (Lat. elemcntum). One of the simplest parts of which anything 



consists. 

 E-lim'i-na'tion (Lat. f, out of, and limen, liminis, a threshold). The act 



of expelling waste matters. Signifies literally " to throw out of doors." 

 E-met'ic (Gr. ^/iert*c6s, causing vomiting). An agent which causes vomiting. 

 E-mul'sion (Lat. emulgere, to milk). A preparation consisting of a liquid, 



usually water, containing an insoluble substance, as fat, in suspension. 

 E-nam'el (Fr. email}. Dense material covering the crown of a tooth. 

 En'do-lymph (Gr. ev5ov, within, and Lat. lympha, water). The fluid in the 



membranous labyrinth of the ear. 



En'dos-mo'sis (Gr. evdov, within, and oJ^6s, pushing). The current from with- 

 out inwards when diffusion of fluids takes place through a membrane. . 

 En'do-the'li-um (Gr. cvSov, within, and #17X77, nipple). The thin epithelium 



lining the blood vessels, lymphatics, and serous cavities. 

 En'zyme (Gr. tv, in, f>5/xr7, leaven). Any ferment formed within the living 



organism. A chemical ferment, as distinguished from organized fer- 

 ments, such as the yeasts. See Ferment. 

 Ep'i-dem'ic (Gr. tirt, upon, and STJ/JLOS, the people). A disease which affects 



large numbers, or which spreads over a wide area. 

 Ep'i-glot'tis (Gr. tirl, upon, and 7X0)7-1-15, the entrance to the windpipe). A 



leaf-shaped lid which covers the top of the larynx during the act of 



swallowing. 



