Associations to the word «Ultrasonic»

Wiktionary

ULTRASONIC, adjective. (acoustics) Beyond (higher in frequency than) the range of sound perceptible to the human ear; with a frequency of 20 kilohertz or higher.
ULTRASONIC BATH, noun. A piece of industrial or laboratory equipment that consists of a container, or bath, used for cleaning or mixing things by sending ultrasonic vibrations through the liquid contained in it.

Dictionary definition

ULTRASONIC, adjective. Having frequencies above those of audible sound.

Wise words

It is only with the heart that one can see rightly; what is essential is invisible to the eye.
Antoine de Saint-Exupery