polygraph
pronunciation
How to pronounce polygraph in British English:
UK [ˈpɒligræf]
How to pronounce polygraph in American English:
US [ˈpɑligræf]
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- Noun:
- a medical instrument that records several physiological processes simultaneously (e.g., pulse rate and blood pressure and respiration and perspiration)
Word Origin
- polygraph (n.)
- 1794, "mechanical device for making multiple copies of something written or drawn," from Greek polygraphos "writing much," from polys "much" (see poly-) + graphos "writing," from graphein "to write" (see -graphy). Meaning "instrument for recording several pulsations of the body at the same time" is 1871; first used as a lie detector 1921. Related: Polygraphy (1590s); polygraphic (1771).
Example
- 1. Most scientists now agree that polygraph " testing " is junk science .
- 2. On legal position of polygraph technology and polygraph conclusion .
- 3. The polygraph indicates that she 's telling the truth .
- 4. You ever given him a polygraph ?
- 5. You 're a human polygraph ?