au bleu

adjective (or adverb)

(ˌ)ōˈblœ̅,

-ˈblə̄,

-ˈblü

: cooked by boiling in acidulated water immediately after being killed and cleaned but without being washed or scaled

—used especially of trout

Word History

Etymology

French, literally, to the blue; from the fact that the skin of fish cooked in this manner turns blue

First Known Use

1776, in the meaning defined above

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