pillar of the fornix

noun

: either of the anterior and posterior diverging extensions of the fornix of the brain see mammillary body

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“Pillar of the fornix.” Merriam-Webster.com Medical Dictionary, Merriam-Webster, https://www.merriam-webster.com/medical/pillar%20of%20the%20fornix. Accessed 4 Mar. 2025.

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