Definition of "quadrigeminal" []

• Having four parts, or two pairs (adjective)

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• "The inferior colliculi (lower or posterior quadrigeminal bodies) are important auditory reflex centers."
• "By a similar thickening process its alar laminæ are developed into the quadrigeminal lamina."
• "Dorsally, it is partly separated from the gray substance of the quadrigeminal bodies by the fibers of the lemniscus; ventral to it are the medial longitudinal fasciculus, and the formatio reticularis of the tegmentum."