superacid

adjective

su·​per·​acid

¦süpə(r)+

1

: excessively acid

superacid solutions of perchloric acid in acetic acid

2

: having a pH value of 3.5–4.0

—used of a highly acid soil (such as bog peat)

Word History

Etymology

super- + acid

The Ultimate Dictionary Awaits

Expand your vocabulary and dive deeper into language with Merriam-Webster Unabridged.

1. Expanded definitions
2. Detailed etymologies
3. Advanced search tools
4. All ad-free

Discover what makes Merriam-Webster Unabridged the essential choice for true word lovers.

Start Your Free Trial Now

Rhymes for superacid

• acid
• placid
• antacid