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

Words are always getting conventionalized to some secondary meaning. It is one of the works of poetry to take the truants in custody and bring them back to their right senses.
William Butler Yeats