ultrasound ultrasound /ˈʌl.trə.saʊnd/ noun
1 F0 [U] special sound waves used in such processes as examining organs inside the body and directing the route of submarines: » They'll use ultrasound to monitor her ovaries.» ultrasound scanning/imagingThesaurus+: ↑Medical and surgical equipment2 F0 [C] an ultrasound scan Thesaurus+: ↑Medical examination |