polygraph
/ˈpɒlɪgrɑːf/noun
1- a machine designed to detect and record changes in physiological characteristics, such as a person's pulse and breathing rates, used especially as a lie detector多种波动描记器（尤用作测谎仪）。
1.1
- a lie-detector test carried out with a machine of this type测谎仪测试。
派生词