ultrasound

== English == === Etymology === From ultra- + sound. === Pronunciation === IPA(key): /ʌl.tɹə.saʊnd/ (General Australian) IPA(key): /ɔl.t͡ʃɹə.sæɔnd/, [ɔʊ̯.t͡ʃɹə.sæɔ̯nd], [ɔɫ.t͡ʃɹə.sæɔ̯nd] === Noun === ultrasound (countable and uncountable, plural ultrasounds) (physics) Sound with a frequency greater than the upper limit of human hearing, which is approximately 20 kilohertz. Antonym: infrasound Hypernym: sound (metonymic, chiefly informal) Ultrasonography. Medical ultrasonography. Therapeutically applied ultrasonic energy. ==== Derived terms ==== ==== Related terms ==== ==== Translations ==== === Verb === ultrasound (third-person singular simple present ultrasounds, present participle ultrasounding, simple past and past participle ultrasounded) (ambitransitive) To treat (someone or something) with ultrasound. Hyponym: ultrasonicate === Anagrams === undulators