semiaxis

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noun

A line segment, joining the centre of a figure to an edge, that forms half of an axis of symmetry.

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

nounsemiaxis (plural semiaxes)

plural semiaxes

  1. mathematicsA line segment, joining the centre of a figure to an edge, that forms half of an axis of symmetry.

Origin

  1. Proto-Indo-European*sem-
  2. Proto-Indo-European*sēmi
  3. Latinsēmi-
  4. Englishsemi-
  5. Proto-Indo-European*h₂eǵ-?
  6. Proto-Indo-European*h₂eḱs-
  7. Proto-Italic*aksis
  8. Latinaxis
  9. Englishaxis
  10. Englishsemiaxis

From semi- + axis.

Full word history & related roots →

Translations

Catalan semieix
  • semieixhalf of an axis of symmetry
Italian semiasse
  • semiassehalf of an axis of symmetry
Cite this entry
APA

semiaxis. (n.d.). In WatkinsX Dictionary. Retrieved November 4, 2026, from https://dictionary.watkinsx.com/word/semiaxis

MLA

“semiaxis.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/semiaxis. Accessed November 4, 2026.

Chicago

WatkinsX Dictionary, s.v. “semiaxis,” accessed November 4, 2026, https://dictionary.watkinsx.com/word/semiaxis.

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