viroid
noun
vi·roid
| \ ˈvī-ˌrȯid
\
\
Definition of viroid
: any of two families (Pospiviroidae and Avsunviroidae) of subviral particles that consist of a small single-stranded RNA arranged in a closed loop without a protein shell and that replicate in their host plants where they may or may not be pathogenic
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More Definitions for viroid
viroid
noun
vi·roid
| \ ˈvī-ˌrȯid
\
\
Medical Definition of viroid
(Entry 1 of 2)
1
: a hypothetical symbiont resembling a virus that was formerly held to be present in cells, to be favorable to the host, and to tend to mutate to a virus
2
: any of two families (Pospiviroidae and Avsunviroidae) of subviral particles that consist of a small single-stranded RNA arranged in a closed loop without a protein shell and that replicate in their host plants where they may or may not be pathogenic
viroid
adjectiveMedical Definition of viroid (Entry 2 of 2)
1
: caused by a virus
viroid pneumonia
2
: of or relating to viroids