opisthion

noun
opis·​thi·​on | \ ə-ˈpis-thē-ˌän How to pronounce opisthion (audio) \
plural opisthia\ -​thē-​ə How to pronounce opisthion (audio) \ or opisthions

Medical Definition of opisthion

: the median point of the posterior border of the foramen magnum

Learn More About opisthion

Cite this Entry

“Opisthion.” Merriam-Webster.com Medical Dictionary, Merriam-Webster, https://www.merriam-webster.com/medical/opisthion. Accessed 24 Jun. 2021.

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