proctodeum

P3R1O1C3T1O1D2E1U1M3
/ˌpɹɒktəˈdiːəm/

noun

The back ectodermal part of an alimentary canal.

OriginAncient Greek πρωκτός →
Scrabble 17
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Meanings

nounproctodeum (plural proctodeums or proctodea)

plural proctodeums · plural proctodea · alternative proctodaeum · alternative proctodæum

  1. The back ectodermal part of an alimentary canal.

    The proctodeum is slightly larger than the urodeum in most species. It is separated from the urodeum by the uroproctodeal fold.

    2015, Brian Speer, Current Therapy in Avian Medicine and Surgery, page 334

Origin

  1. Ancient Greekπρωκτός“rectum”
  2. Englishproctodeum

From Ancient Greek πρωκτός (prōktós, “rectum”) + a latinized and nominalized form of Ancient Greek ὁδαῖος (hodaîos, “on the way”). Compare stomodeum, urodeum, coprodeum, and phallodeum.

More words from Ancient Greek

Full word history & related roots →

Translations

German Hinterdarm, Enddarm
  • Hinterdarmback ectodermal part of an alimentary canal
  • Enddarmback ectodermal part of an alimentary canal
Cite this entry
APA

proctodeum. (n.d.). In WatkinsX Dictionary. Retrieved November 2, 2026, from https://dictionary.watkinsx.com/word/proctodeum

MLA

“proctodeum.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/proctodeum. Accessed November 2, 2026.

Chicago

WatkinsX Dictionary, s.v. “proctodeum,” accessed November 2, 2026, https://dictionary.watkinsx.com/word/proctodeum.

Source: proctodeum on Wiktionary, CC BY-SA 4.0.