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proctodeum

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

1875–80; < New Latin < Greek prōkt- proct- + New Latin -odeum < Greek hodaîon, neuter of hodaîos on or by the way; see -ode2, -eum
Related formsproc·to·de·al, adjective
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

proctodeal in Medicine

proctodeal

(prŏk′tə-dēəl)
adj.
  1. Of or relating to the proctodeum.
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proctodeum

n. pl. proc•to•de•ums
  1. An inward fold on the surface of the embryonic ectoderm that develops into part of the anal passage.anal pit
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The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.