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viroid

noun — 2 senses

viroid

noun

Etymology From virus + -oid.

1

Biology, Microbiology, Natural sciences, Virology Any of many short sections of RNA, but without the protein coat typical of viruses (the capsid), that are plant pathogens.

2

Biology, Microbiology, Natural sciences, Virology Any of certain defective viruses, such as hepatitis D, a human pathogen.

Entry derived from the Wiktionary, under licence CC BY-SA 4.0 — list of authors.