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definitions

ullage rocket

noun

a small hydrogen peroxide rocket engine that produces sufficient acceleration to keep propellants in their places when the main rocket is shut off

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Nearby words

  1. ulfila,
  2. ulfilas,
  3. ulhasnagar,
  4. uliginous,
  5. ullage,
  6. ullswater,
  7. ulluco,
  8. ulm,
  9. ulmaceous,
  10. ulna
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012