Glossary 331 



cereal grass. Used chiefly in connection with the ergot of rye, 

 which is poisonous to poultry. Ergot as a drug has the prop- 

 erty of causing the mammalian uterus to contract. 



Etiology. — The causation of any disease. 



Excrement. — Fecal matter ; matter cast out as waste from the 

 body. 



Exudate. — • A substance thrown out of the body or deposited in a 

 tissue by a vital process. 



Feces. — The excrement or undigested residue of the food discharged 

 from the intestines. Dung. Droppings. 



Flagellate micro-organism. — Any minute microscopic organism 

 which swims through the water by means of the lashing of one 

 or more hair-Uke structures (flagella). 



Follicle. — See p. 246. 



Gall bladder. — The reservoir for the bile or gall secreted by the 

 Uver. It is readily seen on the upper side of the liver. 



Gallus domesticus. — The scientific name for the domestic fowl. 



Gangrene. — See p. 271. Gangrene of oviduct. 



Gastritis. — Inflammation of the stomach. 



Hermaphrodite. — An organism which has both male and female re- 

 productive organs. 



Hejnorrhage. — Bleeding. A copious escape of blood from the 

 vessels. 



Hepatic. — Pertaining to the liver. 



Hijpercemia. — Excess of blood in any part of the body. 



Hypertrophy. — The morbid enlargement or overgrowth of an organ 

 or part. 



Immunity. — Security against any particular disease. 



Infection. — The transmission of disease from one animal to another, 

 usually through some intermediate agent. 



Impaction. — The condition of being firmly lodged or wedged. 



Incinerate. — To burn to ashes. Cremate. 



Incision. — A cut. 



Infiltration. — • The accumulation in a tissue of substances not nor- 

 mally found in it. 



Inflammation. — A morbid condition characterized by pain, heat, 

 redness, and swelling, and by hyperaemia and various exuda- 

 tions. 



Inoculation. — The insertion of a virus into a wound or abrasion in 

 the skin in order to communicate a disease. 



Isthmus. — See p. 248. 



Keratitis. — ■ Inflammation of the cornea of the eye. 



Larva. — The first stage in development after leaving the egg. 

 Used in connection with insects, worms, etc. 



