echo waves

См. также в других словарях:

• 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… …   English World dictionary

• echo — ► NOUN (pl. echoes) 1) a sound caused by the reflection of sound waves from a surface back to the listener. 2) a reflected radio or radar beam. 3) something suggestive of or parallel to something else. ► VERB (echoes, echoed) 1) …   English terms dictionary

• echo — 1. A reverberating sound sometimes heard during auscultation of the chest. 2. In ultrasonography, the acoustic signal received from scattering or reflecting structures or the corresponding pattern of light on a CRT or ultrasonogram. 3. In… …   Medical dictionary

• echo — echoer, n. echoless, adj. /ek oh/, n., pl. echoes, v., echoed, echoing. n. 1. a repetition of sound produced by the reflection of sound waves from a wall, mountain, or other obstructing surface. 2. a sound heard again near its source after being… …   Universalium

• Echo chamber — For metaphorical echo chambers in media, see Echo chamber (media). Echo chamber of the Dresden University of Technology …   Wikipedia

• echo — I. noun (plural echoes; also echos) Etymology: Middle English ecco, from Middle French & Latin; Middle French echo, from Latin, from Greek ēchō; akin to Latin vagire to wail, Greek ēchē sound Date: 14th century 1. a. the repetition of a sound… …   New Collegiate Dictionary

• echo — n. & v. n. (pl. oes) 1 a the repetition of a sound by the reflection of sound waves. b the secondary sound produced. 2 a reflected radio or radar beam. 3 a close imitation or repetition of something already done. 4 a person who slavishly repeats… …   Useful english dictionary

• Echo — n. & v. n. (pl. oes) 1 a the repetition of a sound by the reflection of sound waves. b the secondary sound produced. 2 a reflected radio or radar beam. 3 a close imitation or repetition of something already done. 4 a person who slavishly repeats… …   Useful english dictionary

• echo — ech•o [[t]ˈɛk oʊ[/t]] n. pl. ech•oes, v. 1) a repetition of sound produced by the reflection of sound waves from a wall, mountain, or other obstructing surface 2) a sound heard again near its source after being reflected 3) any repetition or… …   From formal English to slang

• echo sounder — noun 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 an acronym for sound navigation ranging asdic is an acronym for antisubmarine detection …   Useful english dictionary

• echo sounding — noun determining the location of something by measuring the time it takes for an echo to return from it • Syn: ↑echolocation • Hypernyms: ↑localization, ↑localisation, ↑location, ↑locating, ↑fix * * * noun …   Useful english dictionary