ultrasound
Proposed by a contributor, not yet supported by evidence.
Also seen as: ultrasounds · ultrasounding · ultrasounded
Sense 1
Sound with a frequency greater than the upper limit of human hearing, which is approximately 20 kilohertz.
Âm thanh có tần số lớn hơn giới hạn trên của thính giác con người
Machine-translated — suggest a fix
Noun
Sources & notes
Adapted from English Wiktionary (CC BY-SA 4.0, retrieved 2026-08-01 via kaikki.org).
Sense 2
Ultrasonography.
NounRegister: informal
Sources & notes
Adapted from English Wiktionary (CC BY-SA 4.0, retrieved 2026-08-01 via kaikki.org).
Sense 3
To treat (someone or something) with ultrasound.
Verb
Sources & notes
Adapted from English Wiktionary (CC BY-SA 4.0, retrieved 2026-08-01 via kaikki.org).
Common questions
What does “ultrasound” mean?
Sound with a frequency greater than the upper limit of human hearing, which is approximately 20 kilohertz.
Is “ultrasound” formal or informal?
No register label has been reviewed yet — treat it as neutral and check the usage notes above.