Medical Definition of sacral plexus
: a nerve plexus that lies against the posterior and lateral walls of the pelvis, is formed by the union of the lumbosacral trunk and the first, second, and third sacral nerves, and continues into the thigh as the sciatic nerve
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“Sacral plexus.” Merriam-Webster.com Medical Dictionary, Merriam-Webster, https://www.merriam-webster.com/medical/sacral%20plexus. Accessed 7 Aug. 2022.
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