prickly lettuce prickly-leaved • prickly-lobed · · · Info · Definitions · Synonyms · Characters · · prickly lettuce · · Text Common · · Latin · · Scripts 15 · · Length 4 · · Syllables Definitions · · · (noun) European annual wild lettuce having prickly stems; a troublesome weed in parts of United States. Synonyms: prickly lettuce, horse thistle, Lactuca serriola, Lactuca scariola. · · Noun Definition 1 Synonyms · · · horse thistle · · Synonym 1 lactuca serriola · · Synonym 2 lactuca scariola · · Synonym 3 Characters · · space U+0020 c latin small letter c U+0063 e latin small letter e U+0065 i latin small letter i U+0069 k latin small letter k U+006B l latin small letter l U+006C p latin small letter p U+0070 r latin small letter r U+0072 t latin small letter t U+0074 u latin small letter u U+0075 y latin small letter y U+0079