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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. |
| given to using long words. |
sedimentation sed·i·men·ta·tion (sěd'ə-mən-tā'shən, -měn-)
n.
The act or process of depositing or forming a sediment.