ullage |
| noun - In a wine bottle, the empty space between the cork and the top of the wine.
- In a cask or barrel, the empty space, occupied by air, that is created by not completely filling the cask or barrel
- In an industrial setting, the empty space in a tank, such as for fuel
| | undershot |
| verb
- (past of, undershoot)
adjective
- (context, of a waterwheel) powered by water flowing from below
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