• None
  • The vocal organ of a bird, consisting of thin vibrating muscles at or close to the division of the trachea into the bronchi.
  • In some of the brachiopods, like <internalXref urlencoded="Syringothyris">Syringothyris</internalXref>, a split tubular structure developed from the deltidial plates, lying within the umbonal region of the ventral valve, and inclosing or forming a passage for the pedicle.
  • Same as <internalXref urlencoded="Pan%27s%20pipes">Pan's pipes</internalXref> (which see, under <internalXref urlencoded="pipe">pipe</internalXref>).
  • In <em>Egypt. archæol.</em>, a narrow and deep rock-cut channel or tunnel forming a characteristic feature of Egyptian tombs of the New Empire.
  • In <em>anatomy</em>, the Eustachian tube.
  • In <em>ornithology</em>, the voice-organ of birds; the lower larynx, situated at or near the bifurcation of the trachea into the bronchi, and serving to modulate the voice, as in singing.
  • In <em>surgery</em>, a fistula.
  • A wind instrument made of reeds tied together; -- called also <altname>pandean pipes</altname>.
  • The lower larynx in birds.
  • A set of <xref>pan-pipes</xref>.
  • A narrow channel cut in rock, especially in ancient Egyptian tombs.
  • The voice organ in <xref>birds</xref>.
  • A rare, fluid-filled <xref>neuroglial</xref> cavity within the <xref>spinal cord</xref> or in the <xref>brain stem</xref>
  • the vocal organ of a bird
  • a primitive wind instrument consisting of several parallel pipes bound together
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