a plant pathogen that is a virus consisting of a single strand of RNA
buildings for carrying on industrial labor
(botany) a living organism lacking the power of locomotion
(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
a software program capable of reproducing itself and usually capable of causing great harm to files or other programs on the same computer
a harmful or corrupting agency
