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extract    音标拼音: [ɪkstr'ækt] ['ɛkstr,ækt]
n. 榨出物,精汁,选粹
vt. 摘录,析取,吸取

榨出物,精汁,选粹摘录,析取,吸取

extract
撷取; 抽取; 萃取

extract
取 萃取 撷取

extract
n 1: a solution obtained by steeping or soaking a substance
(usually in water) [synonym: {infusion}, {extract}]
2: a passage selected from a larger work; "he presented excerpts
from William James' philosophical writings" [synonym: {excerpt},
{excerption}, {extract}, {selection}]
v 1: remove, usually with some force or effort; also used in an
abstract sense; "pull weeds"; "extract a bad tooth"; "take
out a splinter"; "extract information from the telegram"
[synonym: {extract}, {pull out}, {pull}, {pull up}, {take out},
{draw out}]
2: get despite difficulties or obstacles; "I extracted a promise
from the Dean for two new positions"
3: deduce (a principle) or construe (a meaning); "We drew out
some interesting linguistic data from the native informant"
[synonym: {educe}, {evoke}, {elicit}, {extract}, {draw out}]
4: extract by the process of distillation; "distill the essence
of this compound" [synonym: {distill}, {extract}, {distil}]
5: separate (a metal) from an ore
6: obtain from a substance, as by mechanical action; "Italians
express coffee rather than filter it" [synonym: {press out},
{express}, {extract}]
7: take out of a literary work in order to cite or copy [synonym:
{excerpt}, {extract}, {take out}]
8: calculate the root of a number

Extract \Ex"tract`\, n.
1. That which is extracted or drawn out.
[1913 Webster]

2. A portion of a book or document, separately transcribed; a
citation; a quotation.
[1913 Webster]

3. A decoction, solution, or infusion made by dissolving out
from any substance that which gives it its essential and
characteristic virtue; essence; as, extract of beef;
extract of dandelion; also, any substance so extracted,
and characteristic of that from which it is obtained; as,
quinine is the most important extract of Peruvian bark.
[1913 Webster]

4. (Med.) A solid preparation obtained by evaporating a
solution of a drug, etc., or the fresh juice of a plant;
-- distinguished from an abstract. See {Abstract}, n., 4.
[1913 Webster]

5. (Old Chem.) A peculiar principle once erroneously supposed
to form the basis of all vegetable extracts; -- called
also the {extractive principle}. [Obs.]
[1913 Webster]

6. Extraction; descent. [Obs.] --South.
[1913 Webster]

7. (Scots Law) A draught or copy of writing; certified copy
of the proceedings in an action and the judgement therein,
with an order for execution. --Tomlins.
[1913 Webster]

{Fluid extract} (Med.), a concentrated liquid preparation,
containing a definite proportion of the active principles
of a medicinal substance. At present a fluid gram of
extract should represent a gram of the crude drug.
Extractable


Extract \Ex*tract"\, v. t. [imp. & p. p. {Extracted}; p. pr. &
vb. n. {Extracting}.] [L. extractus, p. p. of extrahere to
extract; ex out trahere to draw. See {Trace}, and cf.
{Estreat}.]
1. To draw out or forth; to pull out; to remove forcibly from
a fixed position, as by traction or suction, etc.; as, to
extract a tooth from its socket, a stump from the earth, a
splinter from the finger.
[1913 Webster]

The bee
Sits on the bloom extracting liquid sweet. --Milton.
[1913 Webster]

2. To withdraw by expression, distillation, or other
mechanical or chemical process; as, to extract an essence.
Cf. {Abstract}, v. t., 6.
[1913 Webster]

Sunbeams may be extracted from cucumbers, but the
process is tedious.
[1913 Webster]

3. To take by selection; to choose out; to cite or quote, as
a passage from a book.
[1913 Webster]

I have extracted out of that pamphlet a few
notorious falsehoods. --Swift.
[1913 Webster]

{To extract the root} (Math.), to ascertain the root of a
number or quantity.
[1913 Webster]

256 Moby Thesaurus words for "extract":
abate, abrade, abridge, abstract, ambergris, ambrosia, aromatic,
aromatic gum, aromatic water, artifact, attar, attar of roses,
avulse, balm, balm of Gilead, balsam, bate, bay oil, bergamot oil,
bolt, brainchild, carve, champaca oil, child, chisel, choose,
choose out, citation, cite, civet, clarify, clear, clipping,
coinage, collect, composition, concentrate, concentration,
conclude, concoction, condense, convert, copy, creation, creature,
crowning achievement, cull, cultivate, curtail, cut out, cutting,
decide between, decoction, decrassify, decrease, deduce, deduct,
deliver, depreciate, depurate, deracinate, derive, derogate,
detract, develop, dig out, dig up, diminish, disentangle,
disparage, distill, distillate, distillation, drain, draw,
draw a conclusion, draw an inference, draw forth, draw out, dredge,
dredge up, eat away, edulcorate, effect, eke out, elicit, elixir,
elute, end product, eradicate, erode, essence, essential oil,
essentialize, evince, evoke, evolve, evulse, excavate, excerpt,
excerption, excise, exsect, extort, extraction, extricate, fetch,
file away, filter, filtrate, find, fixative, force out, free,
fruit, garner, gather, get, get out, glean, gouge out, grow,
grub up, handiwork, handpick, harvest, heliotrope, impair, induce,
infer, infusion, invention, issue, jasmine oil, lavender oil,
leach, lessen, liberate, lixiviate, machine, make a selection,
manufacture, masterpiece, masterwork, milk, mill, mine, mintage,
musk, myrcia oil, myrrh, new mintage, obtain, offspring, opera,
opus, opuscule, origination, outcome, outgrowth, parfum, passage,
percolate, perfume, perfumery, pick, pick out, pick up, pluck out,
pluck up, process, product, production, pry, pull, pull out,
pull up, pump, purification, purify, quarry, quintessence,
quotation, quote, raise, rake out, ransom, rear, reason,
reason that, recover, rectify, redeem, reduce, refine, refinement,
release, remove, rescue, result, retrench, retrieve, rip out,
root out, root up, rose oil, rub away, salvage, save, scent,
scratch, screen, select, selected passage, selection, separate,
set free, shorten, sieve, sift, single out, smelt, spirit,
spiritualize, squeeze, strain, subduct, sublimate, sublime,
subtract, take as proved, take away, take from, take out, tear,
tear out, thin, thin out, try, unearth, unravel, uproot,
volatile oil, wear away, weed, weed out, winkle out, winnow,
withdraw, work, worm out, wrench, wrest, wrest out, wring, yank


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