or·tho·bo·ric acid /ˌɔrθəˌbɔrɪk-/ 名詞
orthoboric acid
n : a white or colorless slightly acid solid that is soluble in
water and ethanol; used in the manufacture of glass and
paper and adhesives and in detergents and as a flux in
welding; also used as an antiseptic and food preservative
[syn: boric acid]