proctodeum

/prok-tuh-dee-uhm/US // ˌprɒk təˈdi əm //

肛门,肛门部,肛门镜,肛门癌

Definitions

n.名词 noun

1
plural proc·to·de·a [prok-tuh-dee-uh], /ˌprɒk təˈdi ə/, proc·to·de·ums.Embryology.
- : a depression in the ectoderm of the anal region of a young embryo, which develops into part of the anal canal.