Callier quotient

noun

Cal·​lier quotient

ˈkalˌyā-

: the ratio of specular density to diffuse density

called also Q factor

Word History

Etymology

after A. Callier, flourished 1909 French photography expert

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