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extraction 音标拼音: [ɪkstr'ækʃən] n. 抽出,取出,抽出物 抽出,取出,抽出物 extraction析取 extraction取 萃取 撷取 extraction n 1: the process of obtaining something from a mixture or compound by chemical or physical or mechanical means 2: properties attributable to your ancestry; " he comes from good origins" [ synonym: { origin}, { descent}, { extraction}] 3: the action of taking out something ( especially using effort or force); " the dentist gave her a local anesthetic prior to the extraction" Extraction \ Ex* trac" tion\, n. [ Cf. F. extraction.] 1. The act of extracting, or drawing out; as, the extraction of a tooth, of a bone or an arrow from the body, of a stump from earth, of a passage from a book, of an essence or tincture. [ 1913 Webster] 2. Derivation from a stock or family; lineage; descent; birth; the stock from which one has descended. " A family of ancient extraction." -- Clarendon. [ 1913 Webster] 3. That which is extracted; extract; essence. [ 1913 Webster] They [ books] do preserve as in a vial the purest efficacy and extraction of that living intellect that bred them. -- Milton. [ 1913 Webster] { The extraction of roots}. ( Math.) ( a) The operation of finding the root of a given number or quantity. ( b) The method or rule by which the operation is performed; evolution. [ 1913 Webster] 163 Moby Thesaurus words for " extraction": affiliation, ancestry, apparentation, architecture, assembly, attraction, attrition, birth, blood, bloodline, bolting, branch, breed, building, casting, clarification, colature, common ancestry, composition, concentrate, concentration, consanguinity, construction, conversion, crafting, craftsmanship, creation, cultivation, curtailment, cut, cutting, decoction, decrease, decrement, depletion, depreciation, deracination, derivation, derogation, descent, destructive distillation, detraction, devising, diminution, dip, direct line, disparagement, distaff side, distillate, distillation, draft, drawing, drayage, edulcoration, elaboration, elixir, elution, elutriation, eradication, erection, essence, essentialization, excerpt, excerption, extirpation, extract, extrication, fabrication, family, fashioning, female line, filiation, filtering, filtration, formation, forming, formulation, framing, growing, handicraft, handiwork, harvesting, haulage, hauling, heaving, house, impairment, infusion, leaching, lessening, line, line of descent, lineage, lixiviation, machining, making, male line, manufacture, manufacturing, milling, mining, molding, origin, parentage, passage, pedigree, percolation, phylum, prefabrication, preparation, processing, producing, pull, pulling, pulling power, purification, quintessence, race, raising, reduction, refinement, refining, remission, removal, retraction, retrenchment, riddling, screening, seed, selected passage, selection, separation, sept, shaping, shortening, shrinkage, side, sieving, sifting, smelting, spear side, spindle side, spirit, spiritualization, stem, stirps, stock, strain, straining, sublimation, succession, sword side, towage, towing, traction, tractive power, truncation, tug- of- war, tugging, uprooting, winnowing, withdrawal, workmanship
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