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leach 音标拼音: [l'itʃ] vt. 过滤,萃取,水浸
vi. 滤掉
n. 过滤,过滤器,滤灰槽 过滤,萃取,水浸滤掉过滤,过滤器,滤灰槽 leach n 1: the process of leaching [ synonym: { leach}, { leaching}] v 1: cause ( a liquid) to leach or percolate 2: permeate or penetrate gradually; " the fertilizer leached into the ground" [ synonym: { leach}, { percolate}] 3: remove substances from by a percolating liquid; " leach the soil" [ synonym: { leach}, { strip}] Leach \ Leach\, n. ( Naut.) See 3d { Leech}. [ 1913 Webster]
Leach \ Leach\, n. [ Written also { letch}.] [ Cf. As. le[' a] h lye, G. lauge. See { Lye}.] 1. A quantity of wood ashes, through which water passes, and thus imbibes the alkali. [ 1913 Webster] 2. A tub or vat for leaching ashes, bark, etc. [ 1913 Webster] { Leach tub}, a wooden tub in which ashes are leached. [ 1913 Webster]
Leach \ Leach\, v. t. [ imp. & p. p. { Leached}; p. pr. & vb. n. { Leaching}.] [ Written also leech and letch.] 1. To remove the soluble constituents from by subjecting to the action of percolating water or other liquid; as, to leach ashes or coffee. [ 1913 Webster] 2. To dissolve out; -- often used with out; as, to leach out alkali from ashes. [ 1913 Webster]
Leach \ Leach\, v. i. To part with soluble constituents by percolation. [ 1913 Webster]
Leach \ Leach\, n. See { Leech}, a physician. [ Obs.] [ 1913 Webster]
Leech \ Leech\, n. [ Cf. LG. leik, Icel. l[ imac] k, Sw. lik boltrope, st[* a] ende liken the leeches.] ( Naut.) The border or edge at the side of a sail. [ Written also { leach}.] [ 1913 Webster] { Leech line}, a line attached to the leech ropes of sails, passing up through blocks on the yards, to haul the leeches by. -- Totten. { Leech rope}, that part of the boltrope to which the side of a sail is sewed. [ 1913 Webster]
Leech \ Leech\, n. [ OE. leche, l[ ae] che, physician, AS. l[= ae] ce; akin to Fries. l[= e] tza, OHG. l[= a] hh[ imac], Icel. l[ ae] knari, Sw. l[ aum] kare, Dan. l[ ae] ge, Goth. l[= e] keis, AS. l[= a] cnian to heal, Sw. l[ aum] ka, Dan. l[ ae] ge, Icel. l[ ae] kna, Goth. l[= e] kin[= o] n.] 1. A physician or surgeon; a professor of the art of healing. [ Written also { leach}.] [ Archaic] -- Spenser. [ 1913 Webster] Leech, heal thyself. -- Wyclif ( Luke iv. 23). 2. ( Zool.) Any one of numerous genera and species of annulose worms, belonging to the order { Hirudinea}, or Bdelloidea, esp. those species used in medicine, as { Hirudo medicinalis} of Europe, and allied species. [ 1913 Webster] Note: In the mouth of bloodsucking leeches are three convergent, serrated jaws, moved by strong muscles. By the motion of these jaws a stellate incision is made in the skin, through which the leech sucks blood till it is gorged, and then drops off. The stomach has large pouches on each side to hold the blood. The common large bloodsucking leech of America ({ Macrobdella decora}) is dark olive above, and red below, with black spots. Many kinds of leeches are parasitic on fishes; others feed upon worms and mollusks, and have no jaws for drawing blood. See { Bdelloidea}. { Hirudinea}, and { Clepsine}. [ 1913 Webster] 3. ( Surg.) A glass tube of peculiar construction, adapted for drawing blood from a scarified part by means of a vacuum. [ 1913 Webster] { Horse leech}, a less powerful European leech ({ H[ ae] mopis vorax}), commonly attacking the membrane that lines the inside of the mouth and nostrils of animals that drink at pools where it lives. [ 1913 Webster] 137 Moby Thesaurus words for " leach": abate, abrade, abstract, bate, bathe, bleed, bolt, brew, chemical solution, clarify, clear, colliquate, condense, curtail, cut, decoagulate, decoct, decoction, decrassify, decrease, deduct, deliquesce, depreciate, depurate, derogate, detract, diminish, discharge, disparage, dissolve, distill, douche, drain, drench, dribble, drip, dripple, drop, drouk, eat away, edulcorate, effuse, elute, emit, erode, essentialize, excrete, exfiltrate, extract, extravasate, exudate, exude, file away, filter, filtrate, fluidify, fluidize, flush, flux, fuse, give off, gurgle, hold in solution, imbrue, imbue, impair, impregnate, infiltrate, infuse, infusion, inject, lave, leachate, lessen, liquefy, liquesce, liquidize, lixiviate, lixivium, macerate, melt, melt down, mixture, ooze, percolate, permeate, purify, rectify, reduce, reek, refine, remove, retrench, rinse, rub away, run, saturate, screen, seep, seethe, separate, shorten, sieve, sift, soak, sodden, solubilize, solution, solve, sop, souse, spiritualize, spurtle, steep, strain, subduct, sublimate, sublime, subtract, sweat, take away, take from, thaw, thin, thin out, transpire, transude, trickle, try, unclot, wash, waterlog, wear away, weed, weep, winnow, withdraw
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