internal os

noun

Medical Definition of internal os

: the opening of the cervix into the body of the uterus

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Dictionary Entries Near internal os

internal occipital protuberance

internal os

internal phase

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Cite this Entry

“Internal os.” Merriam-Webster.com Medical Dictionary, Merriam-Webster, https://www.merriam-webster.com/medical/internal%20os. Accessed 16 May. 2022.

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