viroid virl • virola tallow · · · Info · Definitions · Synonyms · Characters · · viroid · · Text Latin · · Script 6 · · Length 2 · · Syllables Definitions · · · (noun) the smallest of viruses; a plant virus with its RNA arranged in a circular chromosome without a protein coat. Synonyms: virusoid. · · Noun Definition 1 Synonyms · · · virusoid · · Synonym 1 Characters · · d latin small letter d U+0064 i latin small letter i U+0069 o latin small letter o U+006F r latin small letter r U+0072 v latin small letter v U+0076