Dictionary.com
definitions

retrorocket

or ret·ro-rock·et

[ re-troh-rok-it ]
/ ˈrɛ troʊˌrɒk ɪt /

noun

a small, auxiliary rocket engine, forming a part of a larger rocket vehicle and having its exhaust nozzle pointed toward the direction of flight, for decelerating the larger rocket, separating one stage from another, etc.

Nearby words

  1. retroposon,
  2. retropubic space,
  3. retropulsion,
  4. retroreflective,
  5. retroreflector,
  6. retrorse,
  7. retrorsely,
  8. retroserrate,
  9. retroserrulate,
  10. retrosexual

Origin of retrorocket

First recorded in 1945–50; retro- + rocket1
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

British Dictionary definitions for retrorocket

retrorocket

/ (ˈrɛtrəʊˌrɒkɪt) /

noun

a small auxiliary rocket engine on a larger rocket, missile, or spacecraft, that produces thrust in the opposite direction to the direction of flight in order to decelerate the vehicle or make it move backwardsOften shortened to: retro
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