Definitions
- adj. 1
Beyond (higher in frequency than) the range of sound perceptible to the human ear; with a frequency of 20 kilohertz or higher.
Popularity over time
| Word | 1850 → 2019 | Trend |
|---|---|---|
| ultrasonic | falling |
Use in printed books, per decade from 1850 to 2019.
By length
- 10 letters
- supersonic4
The small number after each word is its number of syllables (supersonic4 = 4 syllables).