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viroid Line breaks: vir¦oid
Pronunciation: /ˈvʌɪrɔɪd/

Definition of viroid in English:


An infectious entity affecting plants, smaller than a virus and consisting only of nucleic acid without a protein coat.
Example sentences
  • Prions do not contain DNA or RNA as do fungi, bacteria, viruses, viroids, or any other previously known infectious entities.
  • Fast, accurate tests, based on antibody testing technology, were developed for trichinosis in pigs; for anaplasmosis, a costly parasitic disease in cattle; and for plant viruses and viroids.
  • They include animals, insects, and nematodes (while vine diseases include the microbes bacteria, fungi, phytoplasma, viroids, and virus).
Definition of viroid in:
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