/awr"theuh fos"feuhr euhs, awr'thoh fos fawr"euhs, -fohr"-/ , Chem.
a white to yellowish, crystalline, hygroscopic, water-soluble solid, H 3 PO 3 , used chiefly in the synthesis of phosphites.
[ ORTHO- + PHOSPHOROUS ACID ]
/awr"theuh fos"feuhr euhs, awr'thoh fos fawr"euhs, -fohr"-/ , Chem.
a white to yellowish, crystalline, hygroscopic, water-soluble solid, H 3 PO 3 , used chiefly in the synthesis of phosphites.
[ ORTHO- + PHOSPHOROUS ACID ]
Random House Webster's Unabridged English dictionary. Полный английский словарь Вебстер - Random House . 2012