undulation

• ⇰ लहर
• ⇰ तरंग
• ⇰ उतार-चढ़ाव
• ⇰ तरंगण
• ⇰ नमनोन्नमनशीलता

• ⇰ The act of undulating; a waving motion or vibration; <as>as, the <ex>undulations</ex> of a fluid, of water, or of air; the <ex>undulations</ex> of sound</as>.
• ⇰ A wavy appearance or outline; waviness.
• ⇰ The tremulous tone produced by a peculiar pressure of the finger on a string, as of a violin.
• ⇰ A motion to and fro, up and down, or from side to side, in any fluid or elastic medium, propagated continuously among its particles, but with no translation of the particles themselves in the direction of the propagation of the wave; a wave motion; a vibr