| Title | anechoic |
|---|---|
| Text |
Merriam-Webster's Collegiate Dictionary an·echo·ic DATE 1946 : free from echoes and reverberations an anechoic chamber English Etymology anechoic 1948, in electronics, from an- "not" + echoic (see echo) Webster's Third New International Dictionary, Unabridged an·echo·ic \|anə|kōik, -(ˌ)ne-\ adjective Etymology: an- + echoic : free from echoes and reverberations — used of rooms with sound-absorbent walls especially designed for acoustic measurements; compare dead 10 |
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