ultrasonics
Pronunciation
Noun
B2 Upper-intermediate
Quick answer
The branch of science and technology dealing with sound waves at frequencies too high for humans to hear.
Test yourself
Which word fits the gap? "_____ is behind both medical scans and the cleaning baths used for jewelry."
Answer: ultrasonics
In your own words, what does "ultrasonics" mean?
The branch of science and technology dealing with sound waves at frequencies too high for humans to hear.
Learn next at B2
- unconscious Not awake or aware of one's surroundings, or not consciously realized.
- underclass A social group considered to be at the bottom of society, often experi...
- underlying Existing beneath the surface or being the real cause of something, eve...
- undermine To gradually weaken something, often secretly or indirectly.
- underpinning A basic support or foundation, whether physical or in the sense of an...
- unexpected Not anticipated; surprising.