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.
Words are always getting conventionalized to some secondary meaning. It is one of the works of poetry to take the truants in custody and bring them back to their right senses.