superacid adjective & noun. ['su:pǝrasɪd, 'sju:-] E19.
[from SUPER- + ACID adjective, noun.]
A. adjective.
1. Chemistry. superacid salt, = acid salt s.v. ACID adjective 2. E-M19.

2. Excessively or extremely acid. E20.

3. Chemistry. Of, pertaining to, or of the nature of a superacid. E20.
b. noun. Chemistry. A solution of a strong acid in a very acidic (usu. non-aqueous) solution, which is an extremely effective protonating agent. Also, an acid stronger than some standard acid. M20.

■ supera'cidity noun E20.

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