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proctodeum

noun proc·to·de·um
variants: or proctodaeum play \ˌpräk-tə-ˈdē-əm\

medical Definition of proctodeum

plural -dea or proctodaea play \-ˈdē-ə\ or proctodeums or -daeums
: the posterior ectodermal part of the digestive tract formed in the embryo by invagination of the outer body wall
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proctodeal

or proctodaeal play \-ˈdē-əl\ adjective

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