anacoustic

词形变化

more anacoustic 比较级 most anacoustic 最高级

释义与例句

adj.
  1. 1.

    anechoic, soundless

  2. 2.

    Describing the upper reaches of the atmosphere, and of space, in which the concentration of molecules is too small to support the propagation of sound

    物理

词源

From an- + acoustic.

来源：wiktionary