anteroaxis

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noun

The anterior section of the central axial lobe on the pygidium of an agnostoid trilobite.

OriginEnglish axis ← Latin axis ← Proto-Italic *aksis →
Scrabble 17
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Meanings

nounanteroaxis (plural anteroaxes)

plural anteroaxes

  1. biologyThe anterior section of the central axial lobe on the pygidium of an agnostoid trilobite.

    […] but retention of a cephalothoracic aperture (Rushton, 1979, p.45), and presence always of three segments in the anteroaxis of the pygidium serve to differentiate Condylopygoidea from Agnostoidea.

    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 4

Origin

  1. Proto-Indo-European*h₂én
  2. Proto-Indo-European*h₂énteros
  3. Latin*anterus
  4. Latinanterior
  5. Englishantero-
  6. Proto-Indo-European*h₂eǵ-?
  7. Proto-Indo-European*h₂eḱs-
  8. Proto-Italic*aksis
  9. Latinaxis
  10. Englishaxis
  11. Englishanteroaxis

From antero- + axis.

Full word history & related roots →
Cite this entry
APA

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

MLA

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

Chicago

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

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