Definition of winnow verb from the Oxford Advanced American Dictionary

 

winnow

 verb
verb
NAmE//ˈwɪnoʊ//
 
winnow somethingVerb Forms present simple I / you / we / they winnow
 
he / she / it winnows
 
past simple winnowed
 
-ing form winnowing
 
 
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to blow air through grain in order to remove its outer covering (called thechaff) Phrasal Verbswinnow somebody/something out (of something)
See the Oxford Advanced Learner's Dictionary entry: winnow

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