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Pronunciation varies by accent · noun
A small rocket engine on a larger rocket or spacecraft, designed to slow or reverse its motion..
Use retrorocket when its meaning, tone and grammar fit the full sentence. A synonym is not always a direct replacement.
Retrorocket means A small rocket engine on a larger rocket or spacecraft, designed to slow or reverse its motion..
Common synonyms include retro.
The opposite depends on the specific sense.
Use retrorocket where its definition matches the intended context.
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