ultrasonicWiktionary 原文/ʌltrəˈsɒnɪk/n.超声波adj.超音速的中文释义来自 ECDICT构词拆解ultraultra-前缀sonicsonic词干ultra-Greater than normal quantity or importance, as in ultrasecret. · Beyond, on the far side of, as in ultraviolet.词源说明From ultra- + sonic.释义形容词adjective1(acoustics) Beyond (higher in frequency than) the range of sound perceptible to the human ear; with a frequency of 20 kilohertz or higher.同族词派生词 4nonultrasonic·ultrasonically·ultrasonic bath·acousto-ultrasonic