a. [SUPER- 12 b.]
1. Chem. Superacid salt = SUPERSALT.
1808. Wollaston, in Phil. Trans., XCVIII. 96. Other instances of super-acid and sub-acid salts.
1857. Miller, Elem. Chem., Org., vi. § 3. 425. A remarkable superacid salt (KO, 2HO, 2(C8H4O6) 3Aq).
2. Excessively acid. Hence Superacidity, excessive acidity.
1901. in Dorland, Med. Dict.