Kappa (Κ or κ) is the tenth letter of the Greek alphabet.

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Kappa may also refer to:

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Measurement

  • Cohen's kappa, also known as Kappa statistic
  • Fleiss' kappa, another measure of inter-annotator agreement
  • Kappa number, a measure of lignin content in wood pulp

Informatics

  • Kappa architecture, a purely streaming architecture, as opposed to lambda which uses the same architecture for batch and streaming

Companies

  • Kappa (brand), an Italian sportswear brand
  • Kappa Publishing Group, publishing company

Automotive

  • GM Kappa platform, subcompact rear-wheel drive automobile platform
  • Lancia Kappa, an executive car
  • Hyundai Kappa engine, automobile engine series

Places

  • Kappa, Illinois, a village
  • Kappa Island, Antarctic island

Other uses

  • Kappa (folklore), a Japanese turtle-like humanoid
  • Kappa (novella), by Ryūnosuke Akutagawa
  • Kappa (Dungeons & Dragons), a game creature
  • Death Kappa, a Japanese kaiju film
  • Kappa (rocket), a family of Japanese sounding rockets
  • Kappa TV, a TV channel based in Kerala
  • Knowledge and Power Preparatory Academy IV or KAPPA IV, a middle school in the Bronx, New York City
  • "Kappa", a 1999 song by Mogwai from the album Come On Die Young
  • Kappa chain, a type of immunoglobulin light chain, part of the human immune system
  • Kappa, one of the most popular emotes on live streaming platform Twitch
  • Kappa effect, a sensory illusion relating to the human perception of time
  • SARS-CoV-2 Kappa variant, one of the variants of SARS-CoV-2, the virus that causes COVID-19

See also

  • Honda Capa, a car sold in Japan
  • Kalpa (aeon)
  • Kapa (disambiguation)
  • κ-opioid receptor
  • Kappaphycus alvarezii, a type of seaweed