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English Dictionary - With Multi-Lingual Search Your Query of 'ultrasonic' Resulted in 1 Matches Displaying Items 1 through 1 Definitions 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. Translations:  Etymology: From (term, ultra-) + (term, sonic).        Find:   Words Starting With:   Words Ending With:   Words Containing:   Words That Match:    Translate Into:    Dutch   French   German    Italian   Spanish Browse the Dictionary A B C D E F G H I J K L M N O P Q R S T U V W X Y Z

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