The Collaborative International Dictionary of English v.0.48:

Condense \Con*dense"\, v. t. [imp. & p. p. Condensed; p. pr. &
   vb. n. Condensing.] [L. condensare; con- + densare to make
   thick or dense, densus thick, dense: cf. F. condenser. See
   Dense, and cf. Condensate.]
   1. To make more close, compact, or dense; to compress or
      concentrate into a smaller compass; to consolidate; to
      abridge; to epitomize.
      [1913 Webster]

            In what shape they choose,
            Dilated or condensed, bright or obscure. --Milton.
      [1913 Webster]

            The secret course pursued at Brussels and at Madrid
            may be condensed into the usual formula,
            dissimulation, procrastination, and again
            dissimulation.                        --Motley.
      [1913 Webster]

   2. (Chem. & Physics) To reduce into another and denser form,
      as by cold or pressure; as, to condense gas into a liquid
      form, or steam into water.
      [1913 Webster]

   Condensed milk, milk reduced to the consistence of very
      thick cream by evaporation (usually with addition of
      sugar) for preservation and transportation.

   Condensing engine, a steam engine in which the steam is
      condensed after having exerted its force on the piston.

   Syn: To compress; contract; crowd; thicken; concentrate;
        abridge; epitomize; reduce.
        [1913 Webster]

The Collaborative International Dictionary of English v.0.48:

condensed \condensed\ adj.
   1. (Psychol) representing two or more ideas or emotions by a
      single symbol; as, a condensed expression of various
      feelings and ideas.
      [WordNet 1.5]

   2. shortened by rewriting with fewer words; -- used of texts;
      as, a condensed book. Opposite of unabridged.

   Syn: abridged.
        [WordNet 1.5 +PJC]

   3. reduced to a stronger or more concentrated form; as,
      condensed milk. Opposite of uncondensed.

   Syn: concentrated[5].
        [WordNet 1.5]

   4. narrower than usual for a particular height; -- of
      printers' type. Opposite of expanded.
      [WordNet 1.5]

Moby Thesaurus II by Grady Ward, 1.0:

109 Moby Thesaurus words for "condensed":
   Spartan, abbreviated, abridged, abstracted, aposiopestic, bobbed,
   bobtail, bobtailed, brief, brusque, canned, capsule, capsulized,
   clamped, clipped, close, close-knit, close-textured, close-woven,
   compact, compacted, compendious, compressed, concentrated, concise,
   concrete, congested, consolidated, constricted, contracted,
   crammed, crammed full, cramped, crisp, cropped, crowded, curt,
   curtailed, cut, cut short, dense, digested, docked, elided,
   elliptic, epigrammatic, firm, gluey, gnomic, hard, heavy,
   impenetrable, impermeable, jam-packed, jammed, knitted, laconic,
   massive, mowed, mown, nipped, nonporous, packed, pinched,
   pinched-in, pithy, pocket, pointed, pollard, polled, potted,
   pruned, puckered, pursed, reaped, reserved, sententious, serried,
   shaved, sheared, short, short and sweet, short-cut, shortened,
   snub, snubbed, solid, solidified, squeezed, strangled,
   strangulated, substantial, succinct, summary, synopsized, taciturn,
   terse, thick, thick-growing, thickset, tight, to the point,
   trimmed, truncated, viscid, viscose, viscous, wasp-waisted,
   wrinkled