polygraph

ˈpɒl.iˌɡræf

Images

Definition

Synonyms

Definition of polygraph - Reverso English Dictionary

Noun

sciencedevice measuring physiological responses for lie detection

The suspect was tested with a polygraph.

lie detector

mathematics

TECH.

multidimensional directed graph in mathematics

TECH.

The researcher studied the polygraph in her thesis.

network

technology

Dated

dated device for copying written materials

Dated

The old polygraph was displayed in the museum.

copier

duplicator

Add a suggestion |

Feedback:

Images of polygraph

device measuring physiological responses for lie detection
dated device for copying written materials

Expressions with polygraph

💡 Discover popular phrases, idioms, collocations, or phrasal verbs. Click any expression to learn more, listen to its pronunciation, or save it to your favorites.

polygraph test

examination using a lie-detection device to check if someone is truthful

The suspect agreed to take a polygraph test at the station.

Origin of polygraph

Greek, poly (many) + graph (write)

Terms with polygraph included in their meaning

💡 A powerful way to uncover related words, idioms, and expressions linked by the same idea — and explore meaning beyond exact word matches.

lie detector

technology

polygraph recording bodily changes linked to lying

Examples of polygraph in a sentence

The polygraph indicated he was telling the truth.
The polygraph was complex and intricate.
Understanding the polygraph required advanced mathematical skills.
The inventor demonstrated the polygraph to curious onlookers.
A polygraph was used to duplicate the letters swiftly.

View all translations of polygraph

✨Click below to see the appropriate translations facing each meaning.

French:polygraphe, graphe multidimensionnel, ...
German:Lügendetektor, mehrdimensionaler Graph, ...
Italian:poligrafo, grafo multidimensionale, ...
Spanish:polígrafo, grafo multidimensional, ...
Portuguese:polígrafo, grafo multidimensional, ...
Chinese:测谎仪, 多重图, ...
Japanese:ポリグラフ, 複写装置, ...
Arabic:جِهَاز كَشْف الكَذِب, رسم بياني موجه متعدد الأبعاد, ...
Hebrew:פּוֹלִיגְרַף, גְּרַף מְכוּוָּן רַב־מְמַדִּי, ...
Russian:полиграф, ...
Ukrainian:поліграф, багатовимірний граф, ...
Hindi:पॉलीग्राफ, बहुग्राफ, ...
Bengali:পলিগ্রাফ, কপি যন্ত্র, ...
Catalan:polígraf, graf multidimensional, ...
Czech:polygraf, vícerozměrný orientovaný graf, ...
Danish:løgndetektor, polygraph, ...
Dutch:leugendetector, multigraaf, ...
Greek:πολύγραφος, πολυγράφος, ...
Hungarian:poligráf, többdimenziós irányított gráf, ...
Khmer:ម៉ាស៊ីនពិនិត្យការកុហក, ក្រាបមានទិសពហុមิติ, ...
Korean:거짓말 탐지기, 폴리그래프, ...
Persian:دستگاه دروغ‌سنج, چندگراف, ...
Polish:wariograf, graf wielowymiarowy, ...
Portuguese (BR):polígrafo, grafo multidimensional, ...
Romanian:poligraf, graf multidimensional, ...
Swedish:lögndetektor, polygraph, ...
Thai:เครื่องจับเท็จ, กราฟหลายมิติ, ...
Turkish:poligraf, çoklu grafik, ...
Vietnamese:máy phát hiện nói dối, đồ thị đa chiều, ...

Browse the dictionary entries starting with “p”:

Discover how Reverso redefines the dictionary

Go beyond “simple words”

100,000 expressions & idioms Understand any expression you come across: from corporate jargon like 💬 touch base or ↩️ circle back to everyday expressions such as 🌊 out of the blue or 🦆 lame duck, as well as idioms like 🍲 spill the beans and 🐎 hold your horses.

40,000 images When you search for a concrete noun or object, images help you grasp the meaning at a glance. Try searching for 🧵 puppytooth, 🎠 merry-go-round, ⚜️ fleur-de-lys, or 💤 bunk bed.

Informal language & slang Everyday conversations are packed with informal expressions and slang. Meanings are clearly tagged, so you'll always know when a word is casual. Look up hangry (😋 hungry + 😡 angry), 😎 rizz, 🕹️ noob, or 🔑 low-key.

Abbreviations & acronyms Quickly decode modern abbreviations and acronyms. Go from IDK to OMG in seconds and stay up to date with popular abbreviations such as 🐐 GOAT, 📜 tl;dr, 👀 POV, or 🖥️ AFK.

Regional usage (US / UK) Reverso highlights regional differences between American and British English. You’ll never have to wonder where a word is commonly used: try lift vs. elevator, courgette vs. zucchini, or popular British slang like dodgy or banter. What’s more, when you search for 'color', you’ll immediately see its British counterpart, 'colour'.

Get more than a simple definition

Translations for each meaning View translations alongside each meaning to see how a word is translated in each context. Simply toggle translations ON and choose among 25+ languages. You can also display the translation of definitions or examples into your native language to deepen your understanding.

Synonyms & related words by meaning View synonyms and related words for each meaning, not just for the word as a whole. This helps you choose the most accurate word for your context. Click the

icon to discover related terms: analogies, antonyms, common collocates, words with same roots, umbrella terms… Try with happening or hunch.

Multiple examples for every meaning Each meaning comes with three real-life examples to show you how the word is used in different contexts. Click the

icon next to the first example to see two additional options and learn to use new vocabulary naturally.

Go from understanding to mastery

Save words for later review Click the

icon to save words you want to revisit. You can also save a specific meaning by clicking on the

icon next to it. For example, you might want to save the word “table” as a verb, which means “to postpone”.

Practice with personalized flashcards Reverso automatically transforms your searches and saved words into personalized flashcards and quizzes, featuring high-quality audio and usage examples. This helps you transform terms you only recognize into words you actually use confidently.

Learn with Netflix, YouTube, and your favorite texts With Reverso Chrome extension, transform movies, TV shows, articles, or song lyrics into an interactive lesson. Look up words and expressions in one click on any website and learn with your favorite content.