sound barrier

英語（米国） (en-US) 英語（イギリス） (en-GB)

名詞

不可算名詞 可算名詞

(uncountable) Sonic barrier, the sudden increase in drag (resistance) and other effects experienced by moving objects when their speed approaches that of sound or becomes supersonic (which used to be considered a barrier to higher speeds).

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During the test flight, the experimental jet pierced the sound barrier, sending shockwaves across the desert and thrilling the engineers.

詳細

意味（1）

(uncountable) Sonic barrier, the sudden increase in drag (resistance) and other effects experienced by moving objects when their speed approaches that of sound or becomes supersonic (which used to be considered a barrier to higher speeds).

意味（2）

(countable) A noise barrier, a structure beside a highway designed to reduce the noise of traffic.

St Ives: The guided busway on the old railway alignment to Cambridge has just passed its tenth anniversary. Railfuture has noted its down-at-heel physical appearance, with dirty concrete beams, damaged sound barriers, and unmanaged vegetation.

詳細

sound barriers （ plural ）