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| a white, crystalline, water-insoluble solid, C14H9Cl5, usually derived from chloral by reaction with chlorobenzene in the presence of fuming sulfuric acid: used as an insecticide and as a scabicide and pediculicide: agricultural use prohibited in the U.S. |
| an obscure term ostensibly referring to a lung disease caused by silica dust, sometimes cited as one of the longest words in the English language. |
encephalitis en·ceph·a·li·tis (ěn-sěf'ə-lī'tĭs)
n. pl. en·ceph·a·lit·i·des (-lĭt'ĭ-dēz)
Inflammation of the brain. Also called cephalitis.
| encephalitis (ěn-sěf'ə-lī'tĭs) Pronunciation Key
Inflammation of the brain, usually caused by infection with a virus. |
An inflammation of the brain. Encephalitis may be caused by a virus or lead poisoning, or it may be a complication of another disease, such as influenza or measles. Encephalitis can cause permanent brain damage or death. It is also possible, however, to recover from it completely.