ceraunograph

noun

ce·​rau·​no·​graph

-ˌgraf

plural -s

: an instrument for recording chronologically by pen the occurrence of thunder and lightning

Word History

Etymology

ceraun- + -graph

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