Quantcast
Merriam-Webster Logo
  • Dictionary
  • Thesaurus
  • Scrabble
  • Spanish Central
  • Learner's Dictionary

specific impulse

noun

Definition of specific impulse

  1. :  the thrust produced per unit rate of consumption of the propellant that is usually expressed in pounds of thrust per pound of propellant used per second and that is a measure of the efficiency of a rocket engine



1947

First Known Use of specific impulse

1947


Learn More about specific impulse


Seen and Heard

What made you want to look up specific impulse? Please tell us where you read or heard it (including the quote, if possible).

WORD OF THE DAY

to destroy or remove completely

Get Word of the Day daily email!