groundsel grounds • groundsill · · · Info · Definitions · Synonyms · Characters · · groundsel · · Text Latin · · Script 9 · · Length Definitions · · · (noun) Eurasian weed with heads of small yellow flowers. Synonyms: Senecio vulgaris. · · Noun Definition 1 Synonyms · · · senecio vulgaris · · Synonym 1 Characters · · d latin small letter d U+0064 e latin small letter e U+0065 g latin small letter g U+0067 l latin small letter l U+006C n latin small letter n U+006E o latin small letter o U+006F r latin small letter r U+0072 s latin small letter s U+0073 u latin small letter u U+0075