(ultrasound) scan

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• ultrasound — /ˈʌltrəsaʊnd / (say ultruhsownd) noun 1. pressure waves similar in nature to soundwaves but whose frequencies, greater than 20 000 hertz, are above the audible limit. 2. the diagnostic or therapeutic use of such waves, as in the imaging of… …  

• ultrasound — ul|tra|sound [ ʌltrə,saund ] noun uncount a way of producing an image of an organ inside someone s body using sound waves: Ultrasound was used to show the size of the tumor. a. ultrasound or ultrasound scan a process in which a part of someone s… …   Usage of the words and phrases in modern English

• ultrasound — UK [ˈʌltrəˌsaʊnd] / US noun [uncountable] medical a) a way of producing an image of an organ inside someone s body using sound waves Ultrasound was used to show the size of the tumour. b) ultrasound or ultrasound scan a process in which a part of …   English dictionary

• ultrasound — [[t]ʌ̱ltrəsaʊnd[/t]] N UNCOUNT: usu N n Ultrasound is sound waves which travel at such a high frequency that they cannot be heard by humans. Ultrasound is used in medicine to get pictures of the inside of people s bodies. I had an ultrasound scan …   English dictionary

• ultrasound — ul|tra|sound [ˈʌltrəsaund] n 1.) [U] sound that is too high for humans to hear 2.) [U and C] a medical process using this type of sound, that produces an image of something inside your body ▪ investigation of the liver by ultrasound ▪ An… …   Dictionary of contemporary English

• scan — [skan] vt. scanned, scanning [ME scannen < L scandere, to climb, mount (in LL, to scan): see DESCEND] 1. to analyze (verse) in terms of its rhythmic components, as by counting accents and syllables and marking the metrical feet 2. to look at… …   English World dictionary

• scan|ner — «SKAN uhr», noun. 1. a person or thing that scans. 2. = scanning disk. (Cf. ↑scanning disk) 3. the rotating antenna that sends out and receives radar signals: »The scanner is mounted in the nose of the aircraft and must be capable of operating… …   Useful english dictionary

• Ultrasound — Not to be confused with Supersonic .Ultrasound is cyclic sound pressure with a frequency greater than the upper limit of human hearing. Although this limit varies from person to person, it is approximately 20 kilohertz (20,000 hertz) in healthy,… …   Wikipedia

• scan — 1. To survey by traversing with an active or passive sensing device. 2. The image, record, or data obtained by scanning, usually identified by the technology or device employed; e.g., CT s., radionuclide s …   Medical dictionary

• scan — scan1 [ skæn ] verb ** ▸ 1 look carefully ▸ 2 read quickly ▸ 3 copy with equipment ▸ 4 photograph inside of something ▸ 5 about poetry 1. ) transitive to look at something very carefully, because you hope or expect to see a particular person or… …   Usage of the words and phrases in modern English

• scan — {{Roman}}I.{{/Roman}} noun 1 examination by a machine ADJECTIVE ▪ body, whole body ▪ bone, brain, iris, retina, retinal ▪ CAT …   Collocations dictionary