Associations to the word «Ultrasound»
ULTRASOUND, noun. (physics) sound with a frequency greater than the upper limit of human hearing; approximately 20 kilohertz
ULTRASOUND, noun. (medicine) The use of ultrasonic waves for diagnostic or therapeutic purposes
ULTRASOUND, noun. Very high frequency sound; used in ultrasonography.
ULTRASOUND, noun. Using the reflections of high-frequency sound waves to construct an image of a body organ (a sonogram); commonly used to observe fetal growth or study bodily organs.
The difference between the right word and the almost right word is the difference between lightning and a lightning bug.