alligator grass alligator gar • alligator head · · · Info · Definitions · Synonyms · Characters · · alligator grass · · Text Common · · Latin · · Scripts 15 · · Length 5 · · Syllables Definitions · · · (noun) prolific South American aquatic weed having grasslike leaves and short spikes of white flowers; clogs waterways with dense floating masses. Synonyms: alligator weed, alligator grass, Alternanthera philoxeroides. · · Noun Definition 1 Synonyms · · · alligator weed · · Synonym 1 alternanthera philoxeroides · · Synonym 2 Characters · · space U+0020 a latin small letter a U+0061 g latin small letter g U+0067 i latin small letter i U+0069 l latin small letter l U+006C 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