tetragon tetraglottic • tetragonal · · · Info · Definitions · Synonyms · Characters · · tetragon · · Text Latin · · Script 8 · · Length Definitions · · · (noun) a four-sided polygon. Synonyms: quadrilateral, quadrangle. · · Noun Definition 1 Synonyms · · · quadrilateral · · Synonym 1 quadrangle · · Synonym 2 Characters · · a latin small letter a U+0061 e latin small letter e U+0065 g latin small letter g U+0067 n latin small letter n U+006E o latin small letter o U+006F r latin small letter r U+0072 t latin small letter t U+0074