winnowing

Từ điển WordNet v3.1 - WordNet Dictionary

noun

the act of separating grain from chaff
- the winnowing was done by women
• Syn:
winnow, sifting
• Derivationally related forms:
sift (for: sifting), winnow, winnow (for: winnow)
• Hypernyms:
separation

• Từ đồng nghĩa / Synonyms:
  winnow, sifting