The Collaborative International Dictionary
Save-all \Save"-all`\, n. [Save + all.] Anything which saves fragments, or prevents waste or loss. Specifically:
A device in a candlestick to hold the ends of candles, so that they be burned.
(Naut.) A small sail sometimes set under the foot of another sail, to catch the wind that would pass under it.
--Totten.A trough to prevent waste in a paper-making machine.
Wiktionary
n. 1 Anything that saves fragments, or prevents waste or loss. 2 # A device in a candlestick to hold the ends of candles, so they can be burned. 3 # (context nautical English) A small sail sometimes set under the foot of another sail, to catch the wind that would pass under it. 4 # A trough to prevent waste in a paper-making machine.
WordNet
n. a receptacle for catching waste products for further use
a sail set to catch wind spilled from a larger sail
a net hung between ship and pier while loading a ship