Origin of ultrasonicultra- + sonic
An ultrasonic image of a fetus.
- An example of ultrasonic is an ultrasound image of an unborn baby
- An example of ultrasonic is a dog whistle that cannot be heard by humans,
- An example of ultrasonic is the detection of ships and objects underwater by bouncing a high frequency sound wave off their hulls, a process discovered by Paul Langevin, a Frenchman.
- Of or relating to acoustic frequencies above the range audible to the human ear, or above approximately 20,000 hertz.
- Of, relating to, or involving ultrasound.
ultrasonic - Computer Definition
Sound waves that are beyond the audible hearing range; typically above 20 kilohertz (20,000 Hz). Ultrasonic techniques are found in medicine, which use ultrasound waves to echo back an image of a fetus or internal organ, as well as to administer therapy to various parts of the body. Contrast with infrasonic. See ultrasonic welding and saser.
ultrasonic - Medical Definition
- Relating to acoustic frequencies above the range audible to the human ear, or above approximately 20,000 hertz.
- Relating to or involving ultrasound.
- It's an ultrasonic toothbrush with whitening capabilities built directly into the brush head, eliminating the need for a separate step for whitening.
- The uncomfortable sensation ranges from a mild static shock ot an ultrasonic noise to a spray of citronella or lemon, depending upon the device.
- Ultrasonic jewelry cleaners use sound waves that vibrate through the water to remove particles and dirt from jewelry pieces.
- For example, the Home Décor Ultrasonic Humidifier has a sleek and modern looking design that produces a visible mist in smaller sized rooms.
- Ultrasonic Humidifier - This model is well-suited for medium to large size rooms and can run for 27 hours without needing to be filled.