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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. |
| heterocercal (ˌhɛtərəʊˈsɜːkəl) | |
| —adj | |
| ichthyol Compare homocercal of or possessing a tail in which the vertebral column turns upwards and extends into the upper, usually larger, lobe, as in sharks | |
| [C19: from | |