ECO

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English

Noun

ECO (plural ECOs)

  1. (US, astronautics) Abbreviation of engine cut-off or engine cutoff. (a NASA term for when rocket engines are shut down)
  2. (astronomy, physics) Initialism of eternally collapsing object. (a type of black hole replacement, to avoid having gravitational singularities)

(rocket engine):

  • MECO (main engine cut-off)
  • SECO (sustainer engine cutoff)
  • SECO (secondary engine cut-off)
  • BECO (booster engine cutoff)

(astrophysics):

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