portio
noun
por·tio
ˈpȯr-shē-ˌō 
ˈpȯrt-ē-ˌō
ˈpȯrt-ē-ˌō
plural portiones
ˌpȯr-shē-ˈō-ˌnēz
: a part, segment, or branch (as of an organ or nerve)
the visible portio of the cervix
Cite this Entry
“Portio.” Merriam-Webster.com Medical Dictionary, Merriam-Webster, https://www.merriam-webster.com/medical/portio. Accessed 30 Oct. 2025.
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