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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. |
| (used as a nonsense word by children to express approval or to represent the longest word in English.) |
| electromagnetism (ĭ-lěk'trō-māg'nĭ-tĭz'əm) Pronunciation Key
Any of the wide range of phenomena associated with the behavior and interaction of electric charges and electric and magnetic fields, such as electricity, magnetism, chemical bonds, and all forms of electromagnetic radiation, including light. |