tobacco mosaic

noun

: any of a complex of virus diseases of tobacco and other chiefly solanaceous plants that in their typical manifestation take the form of mosaics

Word History

First Known Use

1914, 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

Kids Definition

tobacco mosaic

noun

: any of a group of virus diseases of tobacco and related plants