[ uhl-ij ]
/ ˈʌl ɪdʒ /
the amount by which the contents fall short of filling a container, as a cask or bottle.
the quantity of wine, liquor, or the like, remaining in a container that has lost part of its contents by evaporation, leakage, or use.
Rocketry. the 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.
Origin of ullage
1400–50; late Middle English < Anglo-French ulliage; Old French ouillage, (h)eullage wine needed to fill a cask, equivalent to (a)ouill(er) to fill (a cask) (derivative of ouil eye, hole < Latin oculus) + -age -age
Related formsul·laged, adjective
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
British Dictionary definitions for ullage
/ (ˈʌlɪdʒ) /
the volume by which a liquid container falls short of being full
- the quantity of liquid lost from a container due to leakage or evaporation
- (in customs terminology) the amount of liquid remaining in a container after such loss
to create ullage in
to determine the amount of ullage in
to fill up ullage in
Derived Formsullaged, adjective
Word Origin for ullage
C15: from Old French ouillage filling of a cask, from ouiller to fill a cask, from ouil eye, from Latin oculus eye
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012