leach

FREQ #27812

vt. 过滤, 萃取 vi. 滤掉 n. 过滤, 过滤器, 沥出物

发音

UK /liːt͡ʃ/
US /liːt͡ʃ/

词形变化

leaches 复数 leaches leached leaches 三单 leaching leaching 现在分词 leached 过去式 leached 过去分词

别名

letch

释义与例句

n.
  1. 1.

    A quantity of wood ashes, through which water passes, and thus imbibes the alkali.

  2. 2.

    A tub or vat for leaching ashes, bark, etc.

  3. 3.

    Alternative spelling of leech.

    航海 交通
  4. 4.

    A jelly-like sweetmeat popular in the fifteenth century.

v.
  1. 1.

    To purge a soluble matter out of something by the action of a percolating fluid.

    及物

    Heavy rainfall can leach out minerals important for plant growth from the soil.

  2. 2.

    To part with soluble constituents by percolation.

    不及物

    The gangue was leached to recover minerals left behind by the original technology.

  3. 3.

    To bleed; to seep.

    比喻 不及物

词汇关系

名词

同义词 1

leaching

上位词 2

action activity
动词

同义词 2

strip percolate

上位词 9

take pull remove withdraw filter dribble trickle take away take off

相关短语

leach brine

词源

From Middle English leche (“leachate; sluggish stream”), from Old English *lǣċ, *lǣċe (“muddy stream”), from Proto-Germanic *lēkijō (“a leak, drain, flow”) (compare Proto-Germanic *lekaną (“to leak, drain”)), from Proto-Indo-European *leǵ- (“to leak”). Cognate with Old English leċċan (“to water, moisten”), Old English lacu (“stream, pool, pond”). More at leak, lake.

来源：wiktionary