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      2. 
		
		
      
			
			
      
				
			
      
			
			
		
      
    
      
        
      
            
      
                
                    
      
	
      calcium
      
	
      英 ['k?ls??m]
美['k?ls??m]

      


	    
      
	
        
    
      • n. [化學(xué)] 鈣
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      英英釋意
      
	
      
	
      1. a white metallic element that burns with a brilliant light; the fifth most abundant element in the earth's crust; an important component of most plants and animals