Answer: ullaged
AnswerCrossword Clue
ullagedthe volume of a loaded tank of liquid propellant in excess of the volume of the propellant; the space provided for thermal expansion of the propellant and the accumulation of gases evolved from it
ullagedthe quantity of wine, liquor, or the like, remaining in a container that has lost part of its contents by evaporation, leakage, or use
ullagedthe amount by which the contents fall short of filling a container, as a cask or bottle