Ultrasonic Wave
noun
An ultra sound wave is an ultrasonic wave.
This is a jukugo word that uses the on'yomi readings of the kanji. You should be able to read this on your own. Just remember that the は changes to ぱ for 波.
超音波なら脂肪細胞を永久に破壊することができると言われたので、この3000ドルもする機械を買ったんですよ。
I was told that ultrasonic waves destroy fat cells permanently, so I bought this machine for $3,000.