cervical plug

noun

: a mass of tenacious secretion by glands of the uterine cervix present during pregnancy and tending to close the uterine orifice

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“Cervical plug.” Merriam-Webster.com Medical Dictionary, Merriam-Webster, https://www.merriam-webster.com/medical/cervical%20plug. Accessed 27 Feb. 2025.

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