smooth crabgrass smooth-core • smooth-crested · · · Info · Definitions · Synonyms · Characters · · smooth crabgrass · · Text Common · · Latin · · Scripts 16 · · Length 3 · · Syllables Definitions · · · (noun) a weed. Synonyms: smooth crabgrass, Digitaria ischaemum. · · Noun Definition 1 Synonyms · · · digitaria ischaemum · · Synonym 1 Characters · · space U+0020 a latin small letter a U+0061 b latin small letter b U+0062 c latin small letter c U+0063 g latin small letter g U+0067 h latin small letter h U+0068 m latin small letter m U+006D o latin small letter o U+006F r latin small letter r U+0072 s latin small letter s U+0073 t latin small letter t U+0074