extranotular

E1X8T1R1A1N1O1T1U1L1A1R1

adjective

Situated between the axial furrows and the notular lines of a trilobite fossil.

OriginEnglish notular ← Latin extrā ← Proto-Italic *eksteros →
Scrabble 19
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Meanings

adjectiveextranotular (not comparable)
  1. not comparablebiologySituated between the axial furrows and the notular lines of a trilobite fossil.

    In the absence of axial furrows the extranotular parts of the axial lobe may be mistaken for parts of the pleural lobes […]

    1990, J. H. Shergold, J. R. Laurie, Sun Xiaowen, Classification and Review of the Trilobite Order Agnostida Salter, 1864: An Australian Perspective, archived from the original on 26 Jul 2026, page 11

Origin

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

From extra- + notular.

Full word history & related roots →
Cite this entry
APA

extranotular. (n.d.). In WatkinsX Dictionary. Retrieved November 3, 2026, from https://dictionary.watkinsx.com/word/extranotular

MLA

“extranotular.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/extranotular. Accessed November 3, 2026.

Chicago

WatkinsX Dictionary, s.v. “extranotular,” accessed November 3, 2026, https://dictionary.watkinsx.com/word/extranotular.

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