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What (who) is echoing$511331$ - definition

REFLECTION OF SOUND THAT ARRIVES AT THE LISTENER WITH A DELAY AFTER THE DIRECT SOUND

Echo (acoustics); Echoed; Echoing; Re-echo; Re-echoes; Re-echoed; Re-echoing; Echo (phenomenon)

echo

¦ noun (plural echoes)

1. a sound caused by the reflection of sound waves from a surface back to the listener.

a reflected radio or radar beam.

Linguistics the repetition of one speaker's utterance by another.

2. something suggestive of or parallel to something else.

3. Bridge a play by a defender of a higher card in a suit followed by a lower one in a subsequent trick, used as a signal to request a further lead of that suit by their partner.

4. a code word representing the letter E, used in radio communication.

¦ verb (echoes, echoing, echoed)

1. (of a sound) reverberate or be repeated after the original sound has stopped.

repeat (someone's words or opinions).

2. be suggestive of or parallel to: a blue suit that echoed the colour of her eyes.

Derivatives

echoer noun

echoey adjective

echoless adjective

Origin

ME: from OFr. or L., from Gk ekho, related to ekhe 'a sound'.

Echo

·noun Fig.: Sympathetic recognition; response; answer.

II. Echo ·vt To send back (a sound); to repeat in sound; to Reverberate.

III. Echo ·noun A wood or mountain nymph, regarded as repeating, and causing the reverberation of them.

IV. Echo ·vt To repeat with assent; to Respond; to Adopt.

V. Echo ·vi To give an echo; to Resound; to be sounded back; as, the hall echoed with acclamations.

VI. Echo ·add. ·noun A signal showing the number held of a plain suit when a high card in that suit is led by one's partner.

VII. Echo ·noun A nymph, the daughter of Air and Earth, who, for love of Narcissus, pined away until nothing was left of her but her voice.

VIII. Echo ·noun A sound reflected from an opposing surface and repeated to the ear of a listener; repercussion of sound; repetition of a sound.

IX. Echo ·add. ·noun A signal, played in the same manner as a trump signal, made by a player who holds four or more trumps (or as played by some exactly three trumps) and whose partner has led trumps or signaled for trumps.

Echoed

·Impf & ·p.p. of Echo.

Wikipedia

Echo

In audio signal processing and acoustics, an echo is a reflection of sound that arrives at the listener with a delay after the direct sound. The delay is directly proportional to the distance of the reflecting surface from the source and the listener. Typical examples are the echo produced by the bottom of a well, by a building, or by the walls of an enclosed room and an empty room. A true echo is a single reflection of the sound source.

The word echo derives from the Greek ἠχώ (ēchō), itself from ἦχος (ēchos), "sound". Echo in the Greek folk story is a mountain nymph whose ability to speak was cursed, leaving her able only to repeat the last words spoken to her. Some animals use echo for location sensing and navigation, such as cetaceans (dolphins and whales) and bats in a process known as echolocation. Echoes are also the basis of Sonar technology.

https://en.wikipedia.org/wiki/Echo