filtration

Từ điển WordNet v3.1 - WordNet Dictionary

noun

1. the process whereby fluids pass through a filter or a filtering medium
• Derivationally related forms:
filter
• Hypernyms:
natural process, natural action, action, activity
• Hyponyms:
percolation, infiltration
2. the act of changing a fluid by passing it through a filter
• Derivationally related forms:
filter
• Hypernyms:
change
• Hyponyms:
percolation