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Neither having nor producing echoes: an anechoic chamber.


(General Physics) having a low degree of reverberation of sound: an anechoic recording studio.


(ˌæn ɛˈkoʊ ɪk)

having an unusually low degree of reverberation; echo-free: an anechoic studio.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Adj.1.anechoic - not having or producing echoes; sound-absorbent; "an anechoic chamber"
nonresonant, unreverberant - not reverberant; lacking a tendency to reverberate
References in periodicals archive ?
The researchers conducted a series of controlled measurements of tornadic debris in an anechoic chamber--a nonreflective or echo-free room designed to fully absorb sound and other waves in order to learn about the scattering tendencies of various kinds of tornadic debris, including leaves, shingles, and boards.
Delving deeper into the subject involves Professor Sophie Scott at University College London, an echo-free chamber, a subject and some pre-recorded giggles.
Axis Communications, the global leader in network video, expands its popular AXIS M30 Series with the new AXIS M3037-PVE Network Camera a vandal-resistant, day/night fixed mini dome that offers panoramic views and echo-free two-way audio communication with built-in microphone and speaker.
The researchers placed the disk in an echo-free room and installed three speakers that blared random words at the same time.
Two-dimensional echocardiography revealed a large well defined mass having echo-free space measuring 9.
Transthoracic echocardiography showed massive circumferential pericardial effusion, marked dilatation of coronary sinus and multiple echo-free spaces adjacent to left atrioventricular groove (Fig.
With no additional hardware or software needed, the DMPS setup tool (included in Crestron Toolbox) makes it easy to deliver a premium-quality echo-free audio system in every room without having to be an acoustician.
Allen says the Sound Sensor--with a 26 Noise Reduction Rating--outperforms electronic hearing protection, filtering out most damaging sound frequencies, and allows for echo-free conversation.
Fibroma with 1650 cc volume in right adenex with degenerated and echo-free regions.