noun Download 🔗Share Sound with a frequency greater than the upper limit of human hearing, which is approximately 20 kilohertz. Examples : "The doctor used ultrasound to see the baby inside the mother's womb. " medicine technology physics sound frequency device science Chat with AIVocabulary GamePractice Reading
noun Download 🔗Share The use of ultrasonic waves for diagnostic or therapeutic purposes. Examples : "The doctor used ultrasound to see the baby growing in my sister's belly. " medicine technology sound device science physiology Chat with AIVocabulary GamePractice Reading
verb Download 🔗Share To treat with ultrasound. Examples : "The doctor used ultrasound to examine the baby's developing heart. " medicine technology Chat with AIVocabulary GamePractice Reading