Quad`ri*gem"i*nal (?), 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.


© Webster 1913.

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