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carbuncle

(Encyclopedia)carbuncle, acute inflammatory nodule of the skin caused by bacterial invasion into the hair follicles or sebaceous gland ducts. It is actually a boil, but one that has more than one focus of infection...

blackleg

(Encyclopedia)blackleg or black quarter, acute infectious disease of cattle, less often of sheep, caused by an organism of the genus Clostridium. It is characterized by inflammation of muscles with swelling and pai...

rubella

(Encyclopedia)rubella or German measles, acute infectious disease of children and young adults. It is caused by a filterable virus that is spread by droplet spray from the respiratory tract of an infected individua...

glaucoma

(Encyclopedia)glaucoma glôkōˈmə [key], ocular disorder characterized by pressure within the eyeball caused by an excessive amount of aqueous humor (the fluid substance filling the eyeball). This causes pressure...

Newcastle disease

(Encyclopedia)Newcastle disease, pneumoencephalitis, acute viral disease of domestic poultry. Newcastle disease is characterized by sneezing, coughing, and nervous behavior. Affected birds may show tremors, circlin...

erysipelas

(Encyclopedia)erysipelas ĕrəsĭpˈələs [key], acute infection of the skin characterized by a sharply demarcated, shiny red swelling, accompanied by high fever and a feeling of general illness. The causative age...

laryngitis

(Encyclopedia)laryngitis, inflammation of the mucous membrane of the voice box, or larynx, usually accompanied by hoarseness, sore throat, and coughing. Acute laryngitis is often a secondary bacterial infection tri...

trench mouth

(Encyclopedia)trench mouth, common term for Vincent's infection, an ulcerative membranous infection of the gums and mouth, by noncontagious infection, associated with a fusiform bacillus and a spirochete. Poor oral...

Callias, d. c.370 b.c., Athenian leader

(Encyclopedia)Callias, d. c.370 b.c., Athenian leader, one of the generals of the Peloponnesian War. In his old age Callias was one of the ambassadors sent to Sparta with Callistratus to negotiate a peace treaty in...

narcosis

(Encyclopedia)narcosis närkōˈsĭs [key], state of stupor induced by drugs. The use of narcotics as a therapeutic aid in psychiatry is believed to have a history dating back to the use of opium for mental disorde...