chloropal

noun

chlor·​opal

(ˈ)klōr¦ōpəl,

-lȯ¦rō-

plural -s

: a yellowish green or greenish yellow clay mineral consisting of hydrous silicate of iron and aluminum and occurring in compact masses or earthy forms resembling opal

Word History

Etymology

German, from chlor- + opal

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