quater-

combining form

: tetra-

—especially in names of organic compounds to denote the quadrupling of a radical or molecule

quaterphenyl

quaterthiazole

Word History

Etymology

International Scientific Vocabulary, from Latin quater four times

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