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The Collaborative International Dictionary
Wineglassfuls

Wineglassful \Wine"glass`ful\;, n. pl. Wineglassfuls. As much as a wineglass will hold; enough to fill a wineglass. It is usually reckoned at two fluid ounces, or four tablespoonfuls.

Wiktionary
wineglassfuls

n. (plural of wineglassful English)