Wiktionary
hypersound
n. (context physics English) sound with a frequency greater than approximately 100 megahertz
Usage examples of "hypersound".
Albert examined me, he measured my temperature bolometrically, scanned my eyes for clarity and my skin for external blemishes like burst blood vessels, pumped hypersound through my torso to peer at the organs inside, and sampled the contributions I left in the toilets for biochemical imbalances and bacteria counts.
If he senses me, and he surely did sense me good, it was through camera lenses and hypersound pulses and capacitance probes and thermal imagers, none of which are located anywhere near the eyes of the image of Albert.