| 单词 | ultrasound |
| 释义 | ultrasound (once / 21888 pages) n The noun ultrasound is a medical term for a scan that allows doctors to easily and safely see inside a patient's body. An ultrasound uses inaudible sound waves to create a picture of a person's internal organs, muscles, bones, and other body parts. The type of ultrasound that's most familiar to non-medical professionals is the kind that allows a doctor or technician to see a fetus from the outside of a pregnant woman's stomach. The person who performs an ultrasound is called a sonographer or a radiologist. WORD FAMILYultrasound: ultrasounds USAGE EXAMPLESThe team at St Mary's hospital in London used focused ultrasound guided by an MRI scanner to destroy tissue causing the tremor. BBC(Dec 29, 2016) The twins’ parents visited Idaho Falls for Byrd’s 20-week ultrasound and when the twins were born. Washington Times(Dec 26, 2016) With no medical gel for ultrasounds, hair gel was being used instead. BBC(Dec 22, 2016) 1n 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 Syn|Hypo|Hyper echography, sonography, ultrasonography A-scan ultrasonography the use of ultrasonography to measure the length of the eyeball B-scan ultrasonographythe use of ultrasonography to view structure in the back of the eye prenatal diagnosis any of the diagnostic procedures used to determine whether a fetus has a genetic abnormality imaging, tomography(medicine) obtaining pictures of the interior of the body 2n very high frequency sound; used in ultrasonography Hyper sound mechanical vibrations transmitted by an elastic medium |
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