polygraph polygrammatic • polygrapher · · · Info · Definitions · Characters · · polygraph · · Text Latin · · Script 9 · · Length 3 · · Syllables Definitions · · · (noun) a medical instrument that records several physiological processes simultaneously (e.g., pulse rate and blood pressure and respiration and perspiration). · · Noun Definition 1 Characters · · a latin small letter a U+0061 g latin small letter g U+0067 h latin small letter h U+0068 l latin small letter l U+006C o latin small letter o U+006F p latin small letter p U+0070 r latin small letter r U+0072 y latin small letter y U+0079