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English Definitions
echo
N
the repetition of a sound resulting from reflection of the sound waves
N
(Greek mythology) a nymph who was spurned by Narcissus and pined away until only her voice remained
echo
N
a reply that repeats what has just been said
echo
N
a reflected television or radio or radar beam
echo
N
a close parallel of a feeling, idea, style, etc.
echo
N
an imitation or repetition
echo
V
to say again or imitate
echo
V
ring or echo with sound
N
an enclosed space for producing reverberation of a sound
N
a measuring instrument that sends out an acoustic pulse in water and measures distances in terms of the time for the echo of the pulse to return
N
determining the location of something by measuring the time it takes for an echo to return from it
N
a graphical image of the heart produced by an echocardiograph
N
a sonograph that creates an image of the heart and its abnormalities
echocardiography
N
a noninvasive diagnostic procedure that uses ultrasound to study to structure and motions of the heart
N
a graphical image of the brain produced by an echoencephalograph
N
a sonograph that creates an image of the brain and its abnormalities
N
a noninvasive diagnostic procedure that uses ultrasound to study the anatomy of the brain
N
an image of a structure that is produced by ultrasonography (reflections of high-frequency sound waves); used to observe fetal growth or to study bodily organs
echography
N
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
(of words) formed in imitation of a natural sound
echoic
like or characteristic of an echo
(of sounds) repeating by reflection
echolalia
N
an infant's repetition of sounds uttered by others
echolalia
N
(psychiatry) mechanical and meaningless repetition of the words of another person (as in schizophrenia)
having or producing no echo
like or characteristic of an echo
N
determining the location of something by measuring the time it takes for an echo to return from it
N
any of a group of viruses associated with various diseases including viral meningitis and mild respiratory disorders and diarrhea in newborn infants
English Definitions from WordNet 3.0
Copyright 2006 by Princeton University. All rights reserved.