Wollaston doublet

noun

Wol·​las·​ton doublet

ˈwu̇ləstən-

: a magnifying glass made of two plano-convex lenses and designed to correct spherical and chromatic aberration

Word History

Etymology

after William H. Wollaston †1828

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