from Wiktionary, Creative Commons Attribution/Share-Alike License.

  • noun Plural form of P-wave.


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  • Two kinds of body waves exist: P-waves and S-waves.

    Earthquake 2010

  • These waves are slower than P-waves and can only move through solid materials.

    Earthquake 2010

  • P-waves or primary waves are formed by the alternate expansion and contraction of bedrock and cause the volume of the material they travel through to change.

    Earthquake 2010

  • When some P-waves move from the ground to the lower atmosphere, the sound wave that is produced can sometimes be heard by humans and animals.

    Earthquake 2010

  • P-waves also have the ability to travel through solid, liquid, and gaseous materials.

    Earthquake 2010

  • P-waves are "pressure" or "compressional" waves, which vibrate back and forth along the line of motion.

    Analog Science Fiction and Fact 2003

  • P-waves travel faster than S-waves, allowing seismologists to use the lag between the arrival of the two sets of waves as a marker for how far any given seismic station is from the source of the signal.

    Analog Science Fiction and Fact 2003

  • If this thing can generate P-waves strong enough to kick it loose at that range, we're not going to ride it out here.

    Starfish 1999

  • P-waves are the less destructive vertical waves, while S-waves are devastating horizontal waves.

    The Earth Times Online Newspaper 2009

  • As P-waves travel 1.73 times faster than S-waves, Wu worked out the correlation between the P-waves and the magnitude of the quake, which means that by analyzing the characteristics of P-waves, he can gauge the destructive force of the quake.

    The Earth Times Online Newspaper 2009


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