prothorax prothoracic • prothrift · · · Info · Definitions · Characters · · prothorax · · Text Latin · · Script 9 · · Length 3 · · Syllables Definitions · · · (noun) the anterior part of an insect's thorax; bears the first pair of legs. · · Noun Definition 1 Characters · · a latin small letter a U+0061 h latin small letter h U+0068 o latin small letter o U+006F p latin small letter p U+0070 r latin small letter r U+0072 t latin small letter t U+0074 x latin small letter x U+0078