[Mova](https://md.mova.elamur.ai/free/en/) · [this page in HTML](https://mova.elamur.ai/free/en/dictionaries/school/w/ultrasound.html)

[home](https://md.mova.elamur.ai/free/en/) / [dictionaries](https://md.mova.elamur.ai/free/en/dictionaries/) / [The school dictionary](https://md.mova.elamur.ai/free/en/dictionaries/school/) / ultrasound

[← U](https://md.mova.elamur.ai/free/en/dictionaries/school/U/)

# ultrasound

«ultrasound» in Mova's school dictionary: **sound that is too high-pitched for humans to hear, but…** — its meaning for a pupil, its sense in the lessons and examples, with 1 sentence of Mova's corpora that use it.

### part of speech

noun (ultrasound, uncountable; an ultrasound, ultrasounds — a scan)

### meaning for a pupil

1) Ultrasound is sound that is too high-pitched for humans to hear, but some animals like bats and dogs can hear it. [tree →](https://md.mova.elamur.ai/free/en/corpora/dictionaries/school/U/ultrasound/#m1)

2) An ultrasound (scan) is a medical test that uses these sound waves to make a picture of the inside of the body, often used to look at a baby before it is born. [tree →](https://md.mova.elamur.ai/free/en/corpora/dictionaries/school/U/ultrasound/#m2)

3) Ultrasound is also used in cleaning machines and in some medical treatments. [tree →](https://md.mova.elamur.ai/free/en/corpora/dictionaries/school/U/ultrasound/#m3)

### sense in the lessons

In science lessons ultrasound shows that sound is a vibration and that some sounds are beyond our hearing range; bats and dolphins use echoes of high sounds to find their way (echolocation). In everyday family life, a parent might show a grainy ultrasound picture of a new baby. It is safe and does not use X-rays. Phrases: «ultrasound scan», «have an ultrasound», «ultrasound picture».

### examples

- Mum showed us the ultrasound of our baby sister. [tree →](https://md.mova.elamur.ai/free/en/corpora/dictionaries/school/U/ultrasound/#x1)
- Bats use ultrasound to find insects in the dark. [tree →](https://md.mova.elamur.ai/free/en/corpora/dictionaries/school/U/ultrasound/#x2)
- The doctor used ultrasound to look at Dad's sore knee. [tree →](https://md.mova.elamur.ai/free/en/corpora/dictionaries/school/U/ultrasound/#x3)
- We can't hear ultrasound, but a dog whistle shows dogs can. [tree →](https://md.mova.elamur.ai/free/en/corpora/dictionaries/school/U/ultrasound/#x4)
- The ultrasound picture looked like a fuzzy black-and-white blob. [tree →](https://md.mova.elamur.ai/free/en/corpora/dictionaries/school/U/ultrasound/#x5)
- Dolphins send out ultrasound clicks and listen for the echoes. [tree →](https://md.mova.elamur.ai/free/en/corpora/dictionaries/school/U/ultrasound/#x6)
- Ultrasound waves bounce back from things inside the body. [tree →](https://md.mova.elamur.ai/free/en/corpora/dictionaries/school/U/ultrasound/#x7)

### note

Uncountable for the sound itself; countable for a scan (an ultrasound, two ultrasounds). «Ultra-» means beyond: beyond the sounds we hear. Compare «infrasound», which is too low to hear. An ultrasound is not an X-ray.

### In the corpora

- [Ships use echoes under water, called sonar, and doctors use very high sounds, called ultrasound, to see inside the body.](https://md.mova.elamur.ai/free/en/corpora/school/physics/17-what-sound-is-wobbles-in-the-air/13/)

### Trees and pragmatics

[Every meaning and example of «ultrasound» parsed by Mova](https://md.mova.elamur.ai/free/en/corpora/dictionaries/school/U/ultrasound/), each sentence with its dependency tree and frames.