See Also: Echo(encyclopedia)
eCHO(medicine)
re-echo(dictionary)
echo(1)(dictionary)
echo(2)(dictionary)
Echo - Blackjack(gambling)
L'Echo de la Bourse(finance)
echo-virus(dictionary)
echo 1, verb(dictionary)
spin echo(medicine)

echo(1) (iou)



echo noun. Pl. -oes, (rare) -os. ME.
[Old & mod. French echo or Latin echo from Greek ekho rel. to ekhe sound.]
A repetition of a sound or sounds due to the reflection of the sound waves; the secondary sound(s) so produced. ME.
to the echo so strongly as to produce echoes.
A. Gray What seemed like echoes were the footsteps of someone behind.
b. The cause of such repetition of sound personified; in Greek mythology (Echo), the name of an oread. LME.
Shakespeare Romeo & Juliet The cave where Echo lies. P. G. Wodehouse Don't repeat everything I say, as if you were an echo in the Swiss mountains.
c. The reflection of a radio wave, ultrasonic signal, etc.; a reflected radio etc. signal. E20.
R. V. Jones Detecting aircraft by echoes arising from reflected radio waves.
A person who reflects or imitates the language or opinions of others; a person who assents merely to flatter. Freq. in titles of newspapers. ME.
M. L. King How often the church has been an echo rather than a voice.
In verse, the repetition of the concluding syllables of a line to form the next line. L16.
A repetition or close imitation of an idea, a style, effect, etc.; a weakened reproduction. E17.
Francis Thompson No man can admire..that of which he has no echo in himself. R. G. Collingwood Thus..the sound of his groans, produces in us an echo of his pain.
Music. A section of an organ, or occas. a separate instrument, located away from the main instrument or enclosed, and used to produce softer and seemingly more distant sounds. Also echo organ. E18.
Bridge & Whist. A conventional play of a higher card in a suit followed by a lower, used to request a further lead of that suit by one's partner or to indicate the number of cards held in that suit. Also called peter. M19.
Comb.: echocardiogram a tracing or image obtained by echocardiography; echocardiographer a person who uses echocardiography; echocardiography examination of the heart by means of ultrasound; echo chamber: for producing reverberation of sounds; echoencephalogram a tracing or image obtained by echoencephalography; echoencephalography examination of the inside or contents of the skull by means of ultrasound; echolocate verb trans. locate by echolocation; echolocation location of objects by means of reflected sound (usu. ultrasound); echometer (a) a device for measuring the duration of sounds; (b) an echo-sounder; echo organ: see sense 5 above; echo-sounder an apparatus for echo-sounding; echo-sounding the action or process of ascertaining depths or other distances by means of the time taken to receive an echo from a distant object, e.g. the seabed; echo verse: using the technique of the echo (sense 3).
echogram noun a record made by an echo-sounder M20.
echograph noun a recording echo-sounder M20.
echoless adjective E18.