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Quadrigeminal bodies

Source : Webster's Revised Unabridged Dictionary (1913)

Quadrigeminal \Quad`ri*gem"i*nal\, Quadrigeminous
\Quad`ri*gem"i*nous\, a. [Quadri- + L. gemini twins.]
   Fourfold; having four similar parts, or two pairs of similar
   parts.

   {Quadrigeminal bodies} (Anat.), two pairs of lobes, or
      elevations, on the dorsal side of the midbrain of most
      mammals; the optic lobes. The anterior pair are called the
      nates, and the posterior the testes.
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