| 单词 | calcium orthoarsenate | 
| 释义 | calcium orthoarsenate [`kal·se·ǝm ¦ȯr·thō`ärs·ǝn´āt]  ORGANIC CHEMISTRY Ca3(AsO4)2 A white powder, insoluble in water; used as a preemergence insecticide and herbicide for turf.  | 
	
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