| 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. |
| 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. |
adenoidectomy ad·e·noid·ec·to·my (ād'n-oi-děk'tə-mē)
n.
Surgical removal of adenoid growths in the nasopharynx.