polygraph in a sentence
n.
📚 Grade Level: Grade 10, Grade 11, Grade 12
Definition
A polygraph is a device used to measure physiological responses, such as heart rate and blood pressure, to assess whether a person is telling the truth or lying.
Sample Sentences
- The detective decided to administer a polygraph test to determine the suspect's truthfulness.
- Many people believe that a polygraph can accurately detect lies, but its reliability is often debated.
- In a high-stakes trial, the defendant's willingness to take a polygraph was seen as a sign of confidence.
- Researchers are exploring new technologies to improve the accuracy of polygraph examinations.
- Despite its controversial nature, the polygraph remains a tool used in various law enforcement agencies.