echo

echo [ek′ō]

n.

pl. echoes [ME ecco < L echo < Gr ēchō < IE base * (s)waĝh-, var. of * wag-, to cry out > L vagire, OE swogan, to sound, roar]

1.

a) the repetition of a sound by reflection of sound waves from a surface

b) a sound so produced

2.

a) any repetition or imitation of the words, style, ideas, etc. of another

b) a person who thus repeats or imitates

3. sympathetic response

4. Electronics a radar wave reflected from an object, appearing as a spot of light on a radarscope

5. [E-] Gr. Myth. a nymph who, because of her unreturned love for Narcissus, pines away until only her voice remains

6. Music

a) a soft repetition of a phrase

b) an organ stop for producing the effect of echo

7. Radio TV the reception of two similar and almost simultaneous signals because one of them has been delayed slightly by reflection from the E layer in transmission

vi.

echoed, echoing

1. to resound with an echo; reverberate

2. to be repeated as or like an echo

vt.

1.

a) to repeat (another's words, ideas, etc.)

b) to repeat the words, etc. of (another person)

2. to repeat or reflect (sound) from a surface

echoey [ek′ō ē΄]

adj.