hypotrochoid

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UK/ˌhaɪ.pə(ʊ)ˈtɹəʊ.kɔɪd/US/ˌhaɪ.poʊˈtɹoʊ.kɔɪd/US/ˌhaɪ.pəˈtɹoʊ.kɔɪd/

noun

A geometric curve traced by a fixed point on the radius line outside one circle which rotates inside the perimeter of another circle.

OriginEnglish trochoid ← Ancient Greek ὑπο- (hupo-) ← Proto-Indo-European *upó →
Scrabble 26
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Meanings

nounhypotrochoid (plural hypotrochoids)

plural hypotrochoids

  1. geometryA geometric curve traced by a fixed point on the radius line outside one circle which rotates inside the perimeter of another circle.

Origin

  1. Proto-Indo-European*upó
  2. Ancient Greekῠ̔πό (hŭpó)
  3. Ancient Greekὑπο- (hupo-)
  4. Englishhypo-
  5. Englishtrochoid
  6. Englishhypotrochoid

From hypo- + trochoid.

Full word history & related roots →

Translations

Afrikaans hipotrogoïed
  • hipotrogoïedgeometric curve
Bulgarian хипотрохоида
  • хипотрохоида (hipotrohoida)geometric curve
Chinese Mandarin 内旋轮线
  • 内旋轮线geometric curve
Czech hypotrochoida
  • hypotrochoidageometric curve
Dutch hypotrochoïde
  • hypotrochoïdegeometric curve
Finnish hypotrokoidi
  • hypotrokoidigeometric curve
French hypotrochoïde
  • hypotrochoïdegeometric curve
Irish hipeatrocóideach
  • hipeatrocóideachgeometric curve
Italian ipotrocoide
  • ipotrocoidegeometric curve
Norwegian hypotrokoide
  • hypotrokoidegeometric curve
Polish hipotrochoida
  • hipotrochoidageometric curve
Portuguese hipotrocoide
  • hipotrocoidegeometric curve
Romanian hipotrohoidă
  • hipotrohoidăgeometric curve
Russian гипотрохоида
  • гипотрохоида (gipotroxoida)geometric curve
Spanish hipotrocoide
  • hipotrocoidegeometric curve
Tamil கணிதம். உட்சில்லுரு
  • கணிதம். உட்சில்லுரு (kaṇitam. uṭcilluru)geometric curve
Vietnamese nội trocoit
  • nội trocoitgeometric curve
Cite this entry
APA

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

MLA

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

Chicago

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

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