ultra-sound

Definition
  1. Noun:
    • Sound waves at high frequency: "ultra-sound" refers to sound waves with frequencies higher than the upper audible limit of human hearing, typically above 20,000 hertz.
    • Medical imaging technique: "ultra-sound" also denotes a diagnostic or therapeutic technique using such high-frequency sound waves to create images of internal body structures or to treat certain conditions.
Usage Examples
  • Noun:
    • The doctor used ultra-sound to examine the unborn baby. (Medical imaging using high-frequency sound waves to view the fetus.)
    • Ultra-sound is employed in industrial testing to detect flaws in metal. (Using high-frequency sound waves for non-destructive material inspection.)
Advanced Usage

  • "ultra-sound scan": a procedure in which ultra-sound is used to produce images of internal organs.

    • She had an ultra-sound scan of her abdomen to check for gallstones. (A diagnostic imaging examination.)

  • "therapeutic ultra-sound": the use of ultra-sound waves to treat injuries or conditions, such as by generating heat in tissues.

    • Physiotherapists often apply therapeutic ultra-sound to reduce inflammation. (Medical treatment using sound waves.)
Variants and Related Words

  • Ultrasonic (adj): relating to sound waves with frequencies above the human hearing range.

    • Ultrasonic cleaners use high-frequency vibrations to remove dirt. (Adjective form describing devices or phenomena.)

  • Ultrasound (n): a common alternative spelling of "ultra-sound", especially in medical contexts.

    • The ultrasound machine was used to guide the needle insertion. (Synonymous with ultra-sound.)
Synonyms
  • Sonography: the process of using ultra-sound to produce images (often used in medical imaging).
    • Sonography is a non-invasive diagnostic tool. (Technical term for ultra-sound imaging.)
  • Echography: another term for sonography, based on the reflection of sound waves.
    • Echography of the heart is called an echocardiogram. (Synonymous with ultra-sound imaging.)
Phrasal Verbs
  • None directly associated: "ultra-sound" is a noun and does not commonly form phrasal verbs. However, the verb "to scan" is often used with it.
    • The technician scanned the patient's liver using ultra-sound. (To perform an ultra-sound examination.)
Related Idioms
  • None directly associated: "ultra-sound" is a technical term and does not appear in idiomatic expressions.