| echo | the persistence of a sound after its source has stopped |
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| echo | a reply that repeats what has just been said |
| echo | to say again or imitate |
| echo | ring or echo with sound |
| echo | call to mind |
| echo | (Greek mythology) a nymph who was spurned by Narcissus and pined away until only her voice remained |
| echo | 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 (sonar is SOund NAvigation Ranging |
| echo | determining the location of something by measuring the time it takes for an echo to return from it |
| echo | diagnostic procedure that uses ultrasound to study to structure and motions of the heart |
| echo | (of words) formed in imitation of a natural sound |
| echo | like or characteristic of an echo |
| echo | (of sounds) repeating by reflection |