Percolate



GRE TOEFL

解释

GRE 红宝书

• v. 过滤出; 渗透
• ［英］ v. 过滤出 ( to cause to pass through a permeable substance) ; 渗透 ( penetrate, seep)
• ［记］ per ( 全部) ＋colate ( 过滤) -> 过滤过去;
• ［同］ 参考: colander ( 滤器)
• ［例］ The rain percolated through the roof.

Webster Collegiate

verb (-lated; -lating)

• Etymology: Latin percolatus, past participle of percolare, from per- through + colare to sieve — more at per-, colander
• Date: 1626
• transitive verb
  • 1.
    • a. to cause (a solvent) to pass through a permeable substance (as a powdered drug) especially for extracting a soluble constituent
    • b. to prepare (coffee) in a percolator
  • 2. to be diffused through ; penetrate
• intransitive verb
  • 1. to ooze or trickle through a permeable substance ; seep
  • 2.
    • a. to become percolated
    • b. to become lively or effervescent
  • 3. to spread gradually <allow the sunlight to percolate into our rooms — Norman Douglas>
  • 4. simmer 2a <the feud had been percolating for a long time>
• ? percolation noun

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