Nairobi disease

noun

: a severe and frequently fatal gastroenteritis of sheep or sometimes goats that occurs in parts of Kenya and is considered due to a virus transmitted by the bite of the brown tick

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