plant virus

/plænt ˌvaɪrəs/

Definitions of plant virus

1. noun

   a plant pathogen that is a virus consisting of a single strand of RNA
   types:

   TMV, tobacco mosaic virus

   the widely studied plant virus that causes tobacco mosaic; it was the first virus discovered (1892)

   viroid, virusoid

   the smallest of viruses; a plant virus with its RNA arranged in a circular chromosome without a protein coat

   onion yellow-dwarf virus

   the virus that produces stunting and yellowing of the leaves of onion plants

   potato yellow-dwarf virus

   the virus that produces stunting and yellowing of the leaves of potato plants

   type of:

   virus

   (virology) ultramicroscopic infectious agent that replicates itself only within cells of living hosts; many are pathogenic; a piece of nucleic acid (DNA or RNA) wrapped in a thin coat of protein