ultrasound
['ʌl.trə.saʊnd] noun
uncountable
■special sound waves used in such processes as examining organs inside the body and directing the path of submarines 超声波（用于人体器官检查、潜艇导航等）•They'll use ultrasound to monitor her ovaries to see if they're responding to the treatment.他们将利用超声波监测她的卵巢以确定治疗是否有效。 •ultrasound scanning/imaging超声波扫描／成像 countable
■an ultrasound scan 超声波检查 |