| 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. |
cholecystography cho·le·cys·tog·ra·phy (kō'lĭ-sĭ-stŏg'rə-fē)
n.
Visualization of the gallbladder by x-rays after the administration of a radiopaque substance.