extraembryonic

E1X8T1R1A1E1M3B3R1Y4O1N1I1C3

adjective

Inside the womb, but outside the embryo.

OriginEnglish embryonic ← Latin extrā ← Proto-Italic *eksteros →
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Meanings

adjectiveextraembryonic (not comparable)
  1. not comparablemedicineInside the womb, but outside the embryo.

    The clockwise beating of cilia results in a net flow of extraembryonic fluid leftwards […]

    2006, Manfred Schliwa, Molecular Motors, page 359
    1 more example

    Subsequent cell and tissue interactions lead to the functional differentiation of all embryonic and extraembryonic tissues.

    1998, Julian Lombardi, Comparative Vertebrate Reproduction, Springer, →ISBN, page 237

Origin

  1. Proto-Indo-European*h₁éǵʰs
  2. Proto-Indo-European*h₁eǵʰsteros
  3. Proto-Italic*eksteros
  4. Latinexter
  5. Latinextrā
  6. Englishextra-
  7. Englishembryonic
  8. Englishextraembryonic

From extra- + embryonic.

Full word history & related roots →
Cite this entry
APA

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

MLA

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

Chicago

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

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