Meaning of Ultrasound
Noun / বিশেষ্য / संज्ञा
Physics. sound with a frequency greater than 20,000 Hz, approximately the upper limit of human hearing.
Medicine/Medical. the application of ultrasonic waves to therapy or diagnostics, as in deep-heat treatment of a joint or imaging of internal structures.
ultrasonic waves at frequencies above the audible range (above about 20 kHz), used in cleaning metallic parts, echo sounding, medical diagnosis and therapy, etc