Wiktionary
n. 1 ''Tobacco mosaic virus'', an RNA virus (of genus (taxlink Tobamovirus genus)) that infects plants, especially tobacco and other members of the family Solanaceae, causing characteristic patterns of mottling and discoloration on the leaf. 2 A disease of tobacco plants, characterized by mottled leaves, caused by this virus
WordNet
n. a plant disease causing discoloration of the leaves of tobacco plants
Usage examples of "tobacco mosaic".
You, for instance, couldn't catch tobacco mosaic virus, and the tobacco plant can't catch the measles virus.
The real and hypothetical entities to which the name had been attached bore only the slightest analogy to the tobacco mosaic virus after which they had been named.
And in the second place, when you catch tobacco mosaic or wheat rust, let me know.
At least, it was a filterable organism which, like the tobacco mosaic or the slime mold, had an organizing factor.
Viable tobacco mosaic crystals have been found dating from the sixteenth century.