PHOSPHOROUS ACID
    
Meaning of PHOSPHOROUS ACID in English
	
Chem.
a colorless, crystalline, water-soluble acid of phosphorus, H 3 PO 3 , from which phosphites are derived.
 [ 1785-95 ]
	
	
	Random House Webster's Unabridged English dictionary.
    	Полный английский словарь Вебстер - Random House .
	2012