ultrasonic

[uhl-truh-son-ik]

adjective

1. of, relating to, or utilizing ultrasound.

ultrasonic

/ ˌʌltrəˈsɒnɪk /

adjective

1. of, concerned with, or producing waves with the same nature as sound waves but frequencies above audio frequencies See also ultrasound

Other Word Forms

• ultrasonically adverb

Word History and Origins

Origin of ultrasonic¹

First recorded in 1925–30; ultra- + sonic

Example Sentences

When some plants are dehydrated or under some other form of stress, they cry a mournful melody made of ultrasonic clicks.

From New York Times

The team was able to remove the expensive metals and circuit components by placing leaftronics in an ultrasonic acid bath.

From Science Magazine

Many pedagogical and scientific sources suggest that the highest pitches reached in classical singing can only be produced with a so-called "whistle" voice register, in analogy to ultrasonic vocalizations of mice and rats.

From Science Daily

Lighting a gas grill, getting an ultrasound, using an ultrasonic toothbrush -- these actions involve the use of materials that can translate an electric voltage into a change in shape and vice versa.

From Science Daily

When they hear a bat nearby, they respond with their own ultrasonic signal, and for the past 30 years, no one has known why.

From Science Daily

Related Words

• accelerated www.thesaurus.com
• brisk 
• expeditious 
• hasty 
• hurried 
• immediate 
• prompt 
• rapid 
• swift