| 释义 |
leach
I.
variant of leech
II. \ˈlēch\ noun
(-es)
Etymology: in sense 1, probably alteration of letch (I); in other senses, from leach (III)
1.
a. : a perforated vessel to hold wood ashes through which water is passed to extract the lye
b. : a pit or tub in which ooze is made by steeping tanbark in water
2.
a. : leachate
b. : the saturated brine that is drained from the salt or left in the pan when the salt is drawn out
3. : the process or an instance of leaching
< is about 60° F. for the last leach — R.N.Shreve >
III. verb
(-ed/-ing/-es)
transitive verb
1.
a. : to subject to the action of percolating water or other liquid in order to separate the soluble components : lixiviate
< leach an ore >
— compare extract 1e
b. : to dissolve out by the action of a percolating liquid — often used with out
< leach out alkali from ashes >
— compare extract 1d
c.
(1) : to remove nutritive or harmful elements from (soil) by percolation
< soil leached of its salts by torrential rains >
(2) : to remove (nutritive or harmful elements) from soil by percolation — often used with out
< leached out the beneficial nutrients — Harper's >
< leaching excess salt out of the soil — D.W.Israelsen >
2. : to draw out or remove as if by percolation
< the evil … is leached out of him — I.L.Salomon >
: draw out or remove something from as if by percolation
< the teeth of women during pregnancy are not leached of their lime salts — F.L.Hise >
intransitive verb
: to pass out or through by percolation
< will not leach out of the wood with rainwater — Monsanto Magazine > |