A wave-like motion of the air or another medium, as in the propagation of sound or light.
| 单词 | θ76694 |
| 释义 | the world > matter > physics > science of sound > sound-waves > [noun] (35) undulation1658 A wave-like motion of the air or another medium, as in the propagation of sound or light. wave1832 Modern scientific uses. Physics. Each of those rhythmic alternations of disturbance and recovery of configuration in successively contiguous… sound-wave1846 Subcategories:— group of (1) — instrument for exhibiting (1) — emission of (3) — scattering (2) — transmission (6) — reflection of (2) — path followed by (3) — point of convergence (1) — pressure exerted by (1) — instrument measuring number or pressure (4) — impedance (4) — insulation against (4) |
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