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Precursor

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Precursor or Precursors may refer to:

Science and technology

  • Precursor (bird), hypothesized genus of fossil birds that was composed of fossilized parts of unrelated animals
  • Precursor (chemistry), compound that participates in the chemical reaction that produces another compound
  • Precursor (physics), phenomenon of wave patterns caused by the dispersion of an impulse's frequency components as it propagates through a medium
  • Precursor in the course of a disease, the state preceding a particular stage in that course
  • Precursor cell (biology), a unipotent stem cell
  • Earthquake precursor, phenomenon that occurs before an earthquake and allegedly -though, so far, not demonstrably- can predict the earthquake
  • Gehrlein Precursor, a glider
  • LNWR Precursor Class (disambiguation), classes of passenger locomotives developed for the London and North Western Railway

Fiction

  • Precursor race, aνy hypothetical alien civilization, in science fiction, fantasy, or horror fiction, which supposedly inhabited the Earth before the earliest human civilizations
  • Precursors in the Halo series, extremely advanced race that preceded and were destroyed by The Forerunners
  • Precursor, novel set in C. J. Cherryh's Foreigner universe (1999)
  • Precursors, fictional race (said to now be extinct) of ancient beings in the board game Cosmic Encounter
  • Precursors, fictional alien race in the Star Control video game series
  • Precursors, fictional race of ancient beings in the Jak and Daxter video game series
  • Precursors, fictional alien race in the video game Galactic Civilizations II: Dread Lords
  • Precursors, fictional alien race, said to now be almost extinct, which supposedly created humanity in the Assassin's Creed video game series
  • Precursors, fictional and extremely advanced alien race in the video game Subnautica.
  • Precursors, fictional, evil alien race that created the Kaiju in the movie Pacific Rim and its sequel Pacific Rim: Uprising

Other uses