ultrasonic

英語（米国） (en-US) 英語（イギリス） (en-GB)

形容詞

(acoustics) Beyond (higher in frequency than) the range of sound perceptible to the human ear; with a frequency of 20 kilohertz or higher.

日本語の意味

20キロヘルツ以上の高周波をもつ、超音波に関する / 人間の耳で感知できる音域を超える周波数の音に関する

英語の意味

(acoustics) Beyond (higher in frequency than) the range of sound perceptible to the human ear; with a frequency of 20 kilohertz or higher.

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The ultrasonic microphones recorded the bats' rapid calls that were beyond the range of human hearing.

超音波マイクが人間の可聴域を超えるコウモリの速い鳴き声を記録した。

詳細

意味（1）

(acoustics) Beyond (higher in frequency than) the range of sound perceptible to the human ear; with a frequency of 20 kilohertz or higher.

The wheel shop also has equipment for ultrasonic testing of axles for flaws; and systematic checking of locomotive axles and crank pins is carried out as they pass through the shops.

詳細

more ultrasonic （ comparative ）

most ultrasonic （ superlative ）