hypotrochoid

English

WOTD – 6 December 2008

The red curve is a hypotrochoid.

Etymology

hypo- +‎ trochoid

Pronunciation

• (UK) IPA^(key): /ˌhaɪ.pə(ʊ)ˈtɹəʊ.kɔɪd/
• (US) IPA^(key): /ˌhaɪ.poʊˈtɹoʊ.kɔɪd/, /ˌhaɪ.pəˈtɹoʊ.kɔɪd/

• Audio (US):

  (file)

Noun

hypotrochoid (plural hypotrochoids)

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

Derived terms

• hypotrochoidal

Translations

geometric curve

• Afrikaans: hipotrogoïed
• Bulgarian: хипотрохоида (hipotrohoida)
• Chinese:

  Mandarin: 内旋轮线 (zh)

• Czech: hypotrochoida
• Dutch: hypotrochoïde f
• Finnish: hypotrokoidi
• French: hypotrochoïde (fr) f
• Irish: hipeatrocóideach m
• Italian: ipotrocoide
• Norwegian: hypotrokoide
• Polish: hipotrochoida
• Portuguese: hipotrocoide f
• Romanian: hipotrohoidă
• Russian: гипотрохоида (ru) (gipotroxoida)
• Spanish: hipotrocoide f
• Tamil: கணிதம். உட்சில்லுரு (kaṇitam. uṭcilluru)
• Vietnamese: nội trocoit

See also

• hypotrochoid on Wikipedia.Wikipedia
• epitrochoid
• cycloid
• epicycloid
• hypocycloid
• spirograph