winnowing

• The much-hyped market for online data storage appears to be winnowing, and a few high-profile names are among the casualties. —  InternetNews Realtime News for IT Managers
• Maybe it's a natural winnowing, as disciplines evolve and careers move forward. —  Chronicle.com - Today's News
• Mr. Simkins had pointed out exactly four pages of chaff for his winnowing, and the winnowing was to be done with pen and ink and the "occasional golden kernels" indicated by Steve on the margin of his paper. —  Left End Edwards
• The winnowing is at harvest-time, not before. —  Raemaekers' Cartoons With Accompanying Notes by Well-known English Writers
• After winnowing, they repeat the process till all the husk has been separated from the grain. —  The Manóbos of Mindanáo Memoirs of the National Academy of Sciences, Volume XXIII, First Memoir

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