英文字典中文字典51ZiDian.com

The Collaborative International Dictionary of English v.0.48 (gcide)

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]