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delta-v

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Fromdelta(“change”) +‎v(“velocity”).

delta-v (pluraldelta-vs)

1. (physics) Avectorchange invelocity, especially asmall change as aresult of acorresponding change in some otherparameter.
2. (astronautics) Themaximumpossiblechange in thescalarspeed of arocket or othervehicle ifoperated in avacuum away fromexternalforces.
3. (astronautics) Theminimumscalarchange inspeedrequired toperform a particularmanoeuvre.

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