sinusoid

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US, UK/ˈsaɪ.nə.sɔɪd/Australia/ˈsɑɪ.nə.soɪd/

noun

A curve having the shape of a sine wave.

“Temperature during the week can be represented with a sinusoid.”

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UncommonScrabble 9

Meanings

nounsinusoid (plural sinusoids)

plural sinusoids

  1. mathematicsA curve having the shape of a sine wave.

    Temperature during the week can be represented with a sinusoid.

  2. anatomyAny of several channels through which venous blood passes in various organs.

    Ren et al. 36 insisted that human MSC can differentiate into hepatocyte-like cells but do not accelerate the capillarization and venularization of hepatic sinusoids, finally leading to the partial improvement of liver function in mice with CCl4-mediated chronic liver fibrosis.

    2013 February 28, Sang-Tae Choi et al., “Therapeutic potentials occurring during the early differentiation process of mesenchymal stem cells in a rats model with thioacetamide-induced liver fibrosis”, in Korean Journal of Hepato-Biliary-Pancreatic Surgery, volume 17, →DOI
adjectivesinusoid (comparative more sinusoid, superlative most sinusoid)

comparative more sinusoid · superlative most sinusoid

  1. mathematicsSinusoidal.
  2. anatomyCharacteristic of a sinus.

Synonyms & antonyms

nounthe curve of y=sin x

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Synonym sets from Open English WordNet, CC BY 4.0.

Origin

  1. Frenchsinusoïde
  2. Englishsinusoid

From the French sinusoïde, equivalent to sinus + -oid.

Full word history & related roots →

Translations

Chinese Mandarin 正弦曲線 /正弦曲线
  • 正弦曲線 /正弦曲线 (zhèngxián qūxiàn)sine curve
Czech sinusoida, sinusovka
  • sinusoidasine curve
  • sinusovkasine curve
  • sinoidasine curve
Finnish sinikäyrä, tiehyt
  • sinikäyräsine curve
  • tiehytanatomy: channel for venous blood
  • ontelomainenanatomy: resembling a sinus
French sinusoïde
  • sinusoïdesine curve
German Sinuskurve, Sinusoid
  • Sinuskurvesine curve
  • Sinusoidanatomy: channel for venous blood
Icelandic sínusferill
  • sínusferillsine curve
Italian sinusoide
  • sinusoidesine curve
Japanese 正弦曲線, 類洞
  • 正弦曲線 (seigen kyokusen)sine curve
  • 類洞 (ruidō)anatomy: channel for venous blood
Latin sinusoīdēs
  • sinusoīdēssine curve
Polish sinusoida
  • sinusoidasine curve
Russian синусо́ида, синусо́идный капилля́р
  • синусо́ида (sinusóida)sine curve
  • синусо́идный капилля́р (sinusóidnyj kapilljár)anatomy: channel for venous blood
  • синусо́ид (sinusóid)anatomy: channel for venous blood
Slovak sínusoida
  • sínusoidasine curve
Swedish sinuskurva
  • sinuskurvasine curve
Tagalog sinwaying kilo
  • sinwaying kilosine curve
Cite this entry
APA

sinusoid. (n.d.). In WatkinsX Dictionary. Retrieved November 2, 2026, from https://dictionary.watkinsx.com/word/sinusoid

MLA

“sinusoid.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/sinusoid. Accessed November 2, 2026.

Chicago

WatkinsX Dictionary, s.v. “sinusoid,” accessed November 2, 2026, https://dictionary.watkinsx.com/word/sinusoid.

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