ultrasound

Thân thiện

A doctor uses an ultrasound machine to check on a developing baby.

Definition

1. Noun:
   • A medical imaging technique: A diagnostic procedure that uses the reflections of very high-frequency sound waves to create a visual image (a sonogram) of internal body structures, such as organs or a developing fetus.
   • Sound waves at a very high frequency: Sound with a frequency above the upper limit of human hearing (approximately 20,000 hertz).

Examples of Usage

• Noun (Medical Imaging):
  • The doctor ordered an ultrasound to check the health of the baby.
  • An abdominal ultrasound can help diagnose problems with the liver or kidneys.
• Noun (High-Frequency Sound):
  • Bats navigate using ultrasound.
  • The device emits ultrasound to clean delicate instruments.

Advanced Usage

• "To have an ultrasound": To undergo an ultrasound examination.
  • She will have an ultrasound at her next prenatal appointment.
• "Ultrasound scan": A synonym for the medical imaging procedure itself.
  • The ultrasound scan revealed twins.

Variants and Related Words

• Sonogram (n): The visual image produced by an ultrasound examination.
  • They showed us the sonogram of our baby.
• Ultrasonography (n): The technical term for the process of using ultrasound for medical imaging.
• Ultrasonic (adj): Relating to or using ultrasound.
  • An ultrasonic cleaner.

Synonyms

• Sonography: (Medical) The practice of using sound waves for diagnostic imaging.
• Echography: (Medical) Another technical term for ultrasound imaging.

Related Phrases

• Doppler ultrasound: A specific type of ultrasound used to visualize blood flow.
  • A Doppler ultrasound was used to assess circulation in the leg.

Học thuật

Noun

1. using the reflections of high-frequency sound waves to construct an image of a body organ (a sonogram); commonly used to observe fetal growth or study bodily organs
2. very high frequency sound; used in ultrasonography

Từ đồng nghĩa

• sonography
• ultrasonography
• echography