polygraphist

noun

po·​lyg·​ra·​phist ˈpä-lē-ˌgra-fist How to pronounce polygraphist (audio) pə-ˈli-grə-fist How to pronounce polygraphist (audio)
: polygrapher

Examples of polygraphist in a Sentence

Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
Captain Liberto was a graduate of the FBI National Academy, and a polygraphist. — Christina Maxouris, CNN, 21 Sep. 2019

Word History

Etymology

polygraph + -ist entry 1

First Known Use

1954, in the meaning defined above

Time Traveler
The first known use of polygraphist was in 1954

Browse Nearby Words

polygrapher
polygraphist
polygraphy
See all Nearby Words

Cite this Entry

“Polygraphist.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/polygraphist. Accessed 19 Apr. 2025.

Copy Citation

Share

Medical Definition

Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!

Popular in Grammar & Usage

See More

The Difference Between 'i.e.' and 'e.g.'

'Affect' vs. 'Effect'

Words You Always Have to Look Up

Democracy or Republic: What's the difference?

Every Letter Is Silent, Sometimes: A-Z List of Examples
See More

Popular in Wordplay

See More

What do SCOTUS, POTUS, and FLOTUS mean?

8 Words with Fascinating Histories

8 Words for Lesser-Known Musical Instruments

Birds Say the Darndest Things

10 Words from Taylor Swift Songs (Merriam's Version)
See More

Popular

See More

The Difference Between 'i.e.' and 'e.g.'

What do SCOTUS, POTUS, and FLOTUS mean?

8 Words with Fascinating Histories
See More

Games & Quizzes

See All
Play Quordle: Guess all four words in a limited number of tries. Each of your guesses must be a real 5-letter word.
Quordle Can you solve 4 words at once?
Play Blossom: Solve today's spelling word game by finding as many words as you can using just 7 letters. Longer words score more points.
Blossom Word Game Pick the best words!
Play Missing Letter: a crossword with a twist. Each of the 25 puzzle words start with a different letter of the alphabet. Which letter is missing?
Missing Letter A daily crossword with a twist
name that thing flower edition
Name That Flower Can you tell the difference between a lilac and a...
See All