cardioid

C3A1R1D2I1O1I1D2

noun

An epicycloid with exactly one cusp; the plane curve with polar equation ρ=1+ cos ,θ - approximately heart-shaped

UncommonScrabble 12
Ask AI about this wordChatGPTClaudePerplexityGoogle AIGrok

Meanings

nouncardioid (plural cardioids)

plural cardioids

  1. geometryAn epicycloid with exactly one cusp; the plane curve with polar equation ρ=1+ cos ,θ - approximately heart-shaped
adjectivecardioid (comparative more cardioid, superlative most cardioid)

comparative more cardioid · superlative most cardioid

  1. Having this characteristic shape
  2. sensitive in front, but not behind or at the sides

Synonyms & antonyms

Also see
cardioidal

Origin

By surface analysis, cardi- + -oid.

Full word history & related roots →

Translations

Czech kardioida
  • kardioidaepicycloid with one cusp
Danish kardioide
  • kardioideepicycloid with one cusp
Esperanto kardioido
  • kardioidoepicycloid with one cusp
Finnish kardioidi
  • kardioidiepicycloid with one cusp
French cardioïde
  • cardioïdeepicycloid with one cusp
German Kardioide, Herzkurve
  • Kardioideepicycloid with one cusp
  • Herzkurveepicycloid with one cusp
Italian cardioide
  • cardioideepicycloid with one cusp
Korean 하트방정식
  • 하트방정식 (hateubangjeongsik)epicycloid with one cusp
Polish kardioida
  • kardioidaepicycloid with one cusp
Russian кардиоида
  • кардиоида (kardioida)epicycloid with one cusp

Rhymes & wordplay

Anagrams

cidaroidcaridoid
Cite this entry
APA

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

MLA

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

Chicago

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

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