Word · Frequency #17847
ultrasound
超声；超声波
very high frequency sound, especially one used in ultrasonography
- 1.
Sound with a frequency greater than the upper limit of human hearing, which is approximately 20 kilohertz.
频率高于人类听觉上限(约20千赫)的声波
- 2.
very high frequency sound; used in ultrasonography
非常高频的声音；用于超声波检查
- 3.
Therapeutically applied ultrasonic energy.
治疗用超声波
- 4.
using the reflections of high-frequency sound waves to construct an image of a body organ (a sonogram); commonly used to observe fetal growth or study bodily organs
利用高频声波反射构建身体器官图像(超声图)；常用于观察胎儿生长或研究身体器官
频率高于人类听觉上限(约20千赫)的声波；非常高频的声音；用于超声波检查；治疗用超声波；利用高频声波反射构建身体器官图像(超声图)；常用于观察胎儿生长或研究身体器官；超声；[计] 超声
In use
The doctor used ultrasound to produce a clear image of the baby.
She was scheduled for an ultrasound to check her kidneys.
Many clinics use ultrasound because it avoids unnecessary radiation.
have an ultrasound
这里的 an ultrasound 指一次超声波检查，常用搭配是 have/undergo an ultrasound。
She had an ultrasound to check the health of the fetus.
她做了超声波检查，以检查胎儿的健康状况。
ultrasound of [body part]
ultrasound 后可接 of 短语指明检查部位，如 ultrasound of the liver。
The doctor arranged an ultrasound of her abdomen.
医生为她安排了腹部超声波检查。
ultrasound is used to [verb]
作不可数名词时，ultrasound 意为'超声波'，常与 be used to do 连用说明用途。
Connections
Collocations
- ultrasound scan
- 超声扫描
- The doctor ordered an ultrasound scan to check her pregnancy.医生让她做超声扫描以检查怀孕情况。
- ultrasound imaging
- 超声成像
- Ultrasound imaging is often used to examine the liver and kidneys.超声成像常用于检查肝脏和肾脏。
- ultrasound examination
- 超声检查
- An ultrasound examination takes about 30 minutes.一次超声检查大约需要30分钟。
- ultrasound probe
- 超声探头
- The technician placed the ultrasound probe on the patient's abdomen.技师将超声探头放在病人的腹部。
- Doppler ultrasound
- 多普勒超声
- Doppler ultrasound is used to measure blood flow through the vessels.多普勒超声用于测量血管中的血流。
Learner notes
Memory Tip
联想：ultra（超出）+ sound（声音）→ 超出人耳可听范围的声音，即超声波。
Context & Register
语域：neutral 常见场景：medical imaging、obstetrics、acoustics 该词通常为中性用语，多用于医学检查（如产科超声）和声学技术等场景；正式书面语与日常口语中都较常见。
Pronunciation & Spelling
These six words all rhyme with the stressed syllable /saʊnd/ of ultrasound: sound, around, ground, found, pound, hound. Watch out for ultraviolet: it shares the ultra- spelling but is pronounced /ˌʌltrəˈvaɪələt/ and does not rhyme.
Usage priority
Collins 词频等级为 1，建议结合例句记忆，而不是只背中文释义。
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.