polygraph
🇺🇸
/ˈpɑːliɡræf/
🇬🇧
/ˈpɒliɡrɑːf/
noun
R
A lie detector is a machine that helps find out if someone is telling the truth or not, often used by police.
The suspect was asked to take a polygraph test to verify his innocence.
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translation
폴리그래프
어형 변화
Plural
polygraphs