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characteristic velocity

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noun Aerospace.

a measure of the effectiveness with which the combustion in a rocket engine produces high temperature and pressure, equal to the exhaust velocity divided by the thrust coefficient.
the total of all velocities a space vehicle must develop to complete a given mission.
an expression of the performance of a propellant or a propulsion system under given operating pressures.

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On the farm, the feed for chicks is significantly different from the roosters’; ______ not even comparable.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2021
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