[1] : The Collaborative International Dictionary of English v.0.48

abstract \ab"stract`\ ; 277, a. l. abstractus, p. p. of
   abstrahere to draw from, separate; ab, abs + trahere to draw.
   see trace.
   1. withdraw; separate. obs.
      1913 webster

            the more abstract . . . we are from the body.
                                                  --norris.
      1913 webster

   2. considered apart from any application to a particular
      object; separated from matter; existing in the mind only;
      as, abstract truth, abstract numbers. hence: ideal;
      abstruse; difficult.
      1913 webster

   3. logic
      a expressing a particular property of an object viewed
          apart from the other properties which constitute it;
          -- opposed to concrete; as, honesty is an abstract
          word. --j. s. mill.
      b resulting from the mental faculty of abstraction;
          general as opposed to particular; as, "reptile" is an
          abstract or general name. --locke.
          1913 webster

                a concrete name is a name which stands for a
                thing; an abstract name which stands for an
                attribute of a thing. a practice has grown up in
                more modern times, which, if not introduced by
                locke, has gained currency from his example, of
                applying the expression "abstract name" to all
                names which are the result of abstraction and
                generalization, and consequently to all general
                names, instead of confining it to the names of
                attributes.                       --j. s. mill.
          1913 webster

   4. abstracted; absent in mind. "abstract, as in a trance."
      --milton.
      1913 webster

   an abstract idea metaph., an idea separated from a
      complex object, or from other ideas which naturally
      accompany it; as the solidity of marble when contemplated
      apart from its color or figure.

   abstract terms, those which express abstract ideas, as
      beauty, whiteness, roundness, without regarding any object
      in which they exist; or abstract terms are the names of
      orders, genera or species of things, in which there is a
      combination of similar qualities.

   abstract numbers math., numbers used without application
      to things, as 6, 8, 10; but when applied to any thing, as
      6 feet, 10 men, they become concrete.

   abstract mathematics or pure mathematics. see
      mathematics.
      1913 webster
see also:
trace concrete an abstract idea abstract terms abstract numbers abstract mathematics 
pure mathematics mathematics 

Abstract >> A Words
Abstract, definition of term: Abstract
abstract_pag1.html

Numbers >> N Words
Numbers, definition of term: Numbers
numbers_pag1.html

Abstract Terms >> A Words
Abstract Terms, definition of term: Abstract Terms
abstract+terms_pag1.html

Abstract Though >> A Words
Abstract Though, definition of term: Abstract Though
abstract+though_pag1.html

Abstract Machin >> A Words
Abstract Machin, definition of term: Abstract Machin
abstract+machin_pag1.html

Abstract Art >> A Words
Abstract Art, definition of term: Abstract Art
abstract+art_pag1.html

Abstract Expres >> A Words
Abstract Expres, definition of term: Abstract Expres
abstract+expres_pag1.html

Random Numbers >> R Words
Random Numbers, definition of term: Random Numbers
random+numbers_pag1.html

Abstract Data T >> A Words
Abstract Data T, definition of term: Abstract Data T
abstract+data+t_pag1.html

Abstract Of Tit >> A Words
Abstract Of Tit, definition of term: Abstract Of Tit
abstract+of+tit_pag1.html