reverberate; repeat a sound; transmit immediately each character received by a computer back to the sourse as to serve as a confirmation of receipt (Computers)
repetition of a sound produced by the reflection of sound waves from a solid surface; (Computers) user input printed to the screen so the user can read it; (Slang) person who reflects on another person; person who imitates another
echo \ech"o\ (?), n.; pl. echoes (#). [l. echo, gr. &?; echo.] (whist) (a) 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. (b) a signal showing the number held of a plain suit when a high card in that suit is led by one's partner. echo \ech"o\ (?), n.; pl. echoes (#). [l. echo, gr. &?; echo, sound, akin to &?;, &?;, sound, noise; cf. skr. vā&?; to sound, bellow; perh. akin to e. voice: cf. f. écho.] 1. a sound reflected from an opposing surface and repeated to the ear of a listener; repercussion of sound; repetition of a sound. the babbling echo mocks the hounds. the woods shall answer, and the echo ring. 2. fig.: sympathetic recognition; response; answer. fame is the echo of actions, resounding them. many kind, and sincere speeches found an echo in his heart. l. stevenson. 3. (a) (myth. & poetic) a wood or mountain nymph, regarded as repeating, and causing the reverberation of them. sweet echo, sweetest nymph, that liv'st unseen within thy airy shell. (b) (gr. myth.) a nymph, the daughter of air and earth, who, for love of narcissus, pined away until nothing was left of her but her voice. compelled me to awake the courteous echo to give me answer from her mossy couch. echo organ (mus.), a set organ pipes inclosed in a box so as to produce a soft, distant effect; -- generally superseded by the swell. echo stop (mus.), a stop upon a harpsichord contrived for producing the soft effect of distant sound.
re-echo tautological echo wood echo to applaud to the echo local echo radar echo remote echo echo stop echo organ
ECHO (European Commission), the European Community Humanitarian aid Office
ECHO (music award), a German music award
Echo 1 communications satellite
Enteric Cytopathic Human Orphan virus
ECHO Lake Aquarium and Science Center in Burlington, Vermont
Extended Care Health Option, a supplemental insurance program for disabled dependents of U.S. uniformed service members
ECHO IV,"Electronic Computer for Home Operation", an experimental home computer from 1966
Gloucestershire Echo, a daily newspaper founded in 1873
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The Exoplanet Characterisation Observatory (EChO) was a proposed space telescope as part of the Cosmic Vision roadmap of the European Space Agency, and competed with four other missions for the M3 slot in the programme. On February 19, 2014, the PLATO mission was selected in place of the other candidates in the programme, including EChO.
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In audio signal processing and acoustics, an echo (plural echoes) is a reflection of sound, arriving at the listener some time after the direct sound. 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 time delay is the extra distance divided by the speed of sound. The word echo derives from the Greek ἠχώ (ēchō), itself from ἦχος (ēchos), "sound". Echo in the folk story of Greek is a mountain nymph who's ability to speak was cursed, only able to repeat the last words anyone spoke to her. Animals that use echoes are cetaceans (dolphins and whales) and bats.
Noun 1. (Greek mythology) a nymph who was spurned by Narcissus and pined away until only her voice remained (hypernym) nymph (classification) Greek mythology Noun 1. the persistence of a sound after its source has stopped (synonym) reverberation, sound reflection, replication (hypernym) reflection, reflexion, reflectivity (hyponym) re-echo (derivation) recall 2. a reply that repeats what has just been said (hypernym) reply, response (hyponym) echolalia (derivation) repeat Verb 1. to say again or imitate; "followers echoing the cries of their leaders" (synonym) repeat (hypernym) utter, emit, let out, let loose (hyponym) recite 2. ring or echo with sound; "the hall resounded with laughter" (synonym) resound, ring, reverberate (hypernym) sound, go (hyponym) consonate (derivation) reverberation, sound reflection, replication 3. call to mind; "His words echoed John F. Kennedy" (synonym) recall (hypernym) resemble (derivation) reverberation, sound reflection, replication
To send back (a sound); to repeat in sound; to reverberate. (v. t.)
To repeat with assent; to respond; to adopt. (v. i.)
To give an echo; to resound; to be sounded back; as, the hall echoed with acclamations. (n.)
Fig.: Sympathetic recognition; response; answer. (n.)
A wood or mountain nymph, regarded as repeating, and causing the reverberation of them. (n.)
A sound reflected from an opposing surface and repeated to the ear of a listener; repercussion of sound; repetition of a sound. (n.)
A nymph, the daughter of Air and Earth, who, for love of Narcissus, pined away until nothing was left of her but her voice.
1. A wave that has been reflected by a discontinuity in the propagation medium. 2. A wave that has been reflected or otherwise returned with sufficient magnitude and delay to be perceived. (188 ) Note 1: Echoes are frequently measured in dB relative to the directly transmitted wave. Note 2: Echoes may be desirable (as in radar) or undesirable (as in telephone systems). 3. In computing, to print or display characters (a) as they are entered from an input device, (b) as instructions are executed, or (c) as retransmitted characters received from a remote terminal. 4. In computer graphics, the immediate notification of the current values provided by an input device to the operator at the display console.
To reflect received data to the sender. For example, keys depressed on a keyboard are usually echoed as characters displayed on the screen. Local echo ON causes all transmitted data to be sent to the screen of the sending computer. Remote echo ON causes everything that the remote computer (the one you are communicating with) transmits to be duplicated on your computer's screen. See Duplex.