Standard Lemma guide

virusoid

noun · 2 senses · updated from the 2026-07-25 local source snapshot

Definitions and examples are grouped by meaning. Pronunciation, history, word forms, translations, descendants, synonyms, antonyms, derived terms, and related words appear whenever the source provides them.

Sound

Pronunciation

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1

noun

Meaning 1

A circular single-stranded RNA, similar but not identical to a viroid, dependent on plant viruses for replication and encapsidation.

Definition source: English Wiktionary via Wiktextract

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

2

noun

Meaning 2

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

Definition source: Princeton WordNet 3.0

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: viroid

Antonyms: none provided

Broader terms: plant virus

History

Etymology

From virus + -oid.