noun

• (uncountable, Zen Buddhism) A sudden inexpressible feeling of spiritual awakening or enlightenment, the result of meditation and study.
  "[B]y his ſublime underſtanding and reputed great knovvledge in divine myſteries he obtain'd, and ſtill keeps, the name and repute of a Godo, that is, a perſon bleſs'd vvith a divine and moſt accute underſtanding, vvhom they ſuppoſe to be able to find out by his Satori, or Enthuſiaſtic Speculations, ſuch miſterious truths, as are far beyond the reach of common knovvledge."
• (uncountable, figurative) Enlightenment, epiphany.
  "What happened to the Merry Band on its trip during the summer of 1964 ranged from the cosmically sublime to the ridiculous, from peak ecstasy to full-tilt satori. To say that they were merely high would do a disservice to how stoned they really were, […]"
• (countable, biochemistry) A mutant gene of Drosophila, a genus of fruit flies, that causes homosexual behaviour in males (specifically, courtship directed to other males).
  "We have isolated a new Drosophila mutant, satori (sat), the males of which do not court or copulate with female flies. […] We have screened about 2000 fly lines with single P-element insertions for altered sexual behavior, yielding a mutant named satori (sat; nirvana in Japanese), the males of which do not court or copulate with females. Instead, sat males exhibit homosexual courtship."

noun

• (Japanese mythology) A yokai (“supernatural monster”) having the form of a mind-reading monkey-like creature said to dwell in the mountains of the historical Japanese provinces of Hida and Mino (present-day Gifu Prefecture).
  "The Satori appears in [Toriyama] Sekien's Konjyaku Gazu Zoku Hyakki as a hairy, ape-like, mountain-dwelling creature that can read people's minds[…]."

noun

• (Zen Buddhism) Alternative form of satori.