Word · Frequency #15126
polygraph
多种波动描记器
a medical device that records several bodily processes at the same time, such as pulse, blood pressure, and breathing
- 1.
A device which measures and records several physiological variables such as blood pressure, heart rate, respiration and skin conductivity while a series of questions is being posed to a subject, in an attempt to detect deception.
测谎仪,测量并记录多项生理指标(如血压、心率、呼吸和皮肤电导)以检测说谎的设备。
- 2.
A group of letters that represent a single phoneme.
表示单一音位的一组字母。
- 3.
Any group of letters treated as a single item.
被视为单个项目的任意字母组。
- 4.
An author who writes on many subjects.
涉猎多种题材的作家。
- 5.
A multidimensional directed graph.
多维有向图。
测谎仪,测量并记录多项生理指标(如血压、心率、呼吸和皮肤电导)以检测说谎的设备。；表示单一音位的一组字母。；被视为单个项目的任意字母组。；涉猎多种题材的作家。；多维有向图。
In use
During the medical examination, the technician used a polygraph to record the patient's pulse, breathing, and perspiration at the same time.
The doctor attached the polygraph's sensors to the volunteer's arm and watched the readings on the screen.
A polygraph with several sensors can monitor heart rate and blood pressure during an experiment.
polygraph [noun]
polygraph 常作定语，修饰 test、examiner、result 等名词。
The suspect agreed to take a polygraph test.
嫌疑人同意接受测谎测试。
take a polygraph
take a polygraph 是固定搭配，表示接受测谎；也可说 take a polygraph test。
All new employees must take a polygraph during the background check.
所有新员工在背景调查期间都必须接受测谎测试。
Connections
Collocations
- polygraph test
- 测谎测试
- The company requires all security staff to pass a polygraph test.公司要求所有安保人员通过测谎测试。
- take a polygraph
- 接受测谎
- He refused to take a polygraph during the investigation.调查期间他拒绝接受测谎。
- fail a polygraph
- 未通过测谎
- The suspect failed the polygraph and was questioned further.嫌疑人未通过测谎，随后受到进一步讯问。
- polygraph results
- 测谎结果
- The polygraph results were not allowed as evidence in court.测谎结果不被允许作为法庭证据。
- polygraph examiner
- 测谎员
- A certified polygraph examiner conducted the interview.一名持证测谎员进行了这次访谈。
Pop culture & quotes
Learner notes
Memory Tip
联想：poly=多，graph=记录，测谎仪同时记录多项生理波动，故称polygraph。
Context & Register
语域：formal 常见场景：medical diagnostics、clinical monitoring、physiology research 本义项为医学术语，多用于临床监测、生理研究等正式或技术性场景，日常口语中不常用。
Grammar Note
复数形式为 polygraphs。
Pronunciation & Spelling
These words all end in the letters 'graph' and share the final syllable sound /ɡrɑːf/. However, none rhymes with polygraph: polygraph is stressed on the first syllable (/ˈpɒlɪɡrɑːf/), while each of these has a different stressed vowel (e.g., photograph /ˈfəʊtəɡrɑːf/, telegraph /ˈtelɪɡrɑːf/). Even graph itself (/ɡrɑːf/) is not a perfect rhyme because polygraph's stressed vowel is /ɒ/, not /ɑː/.
Learn the forms together
页面下方列出了常见词形变化。学习时注意它们在句子中的语法位置。
Dictionary facts from ECDICT, WIKTIONARY.