The Collaborative International Dictionary of English v.0.48:

Chimera \Chime"ra\, n.; pl. Chimeras. [L. chimaera a chimera
   (in sense 1), Gr. ? a she-goat, a chimera, fr. ? he-goat; cf.
   Icel. qymbr a yearling ewe.]
   1. (Myth.) A monster represented as vomiting flames, and as
      having the head of a lion, the body of a goat, and the
      tail of a dragon. "Dire chimeras and enchanted isles."
      --Milton.
      [1913 Webster]

   2. A vain, foolish, or incongruous fancy, or creature of the
      imagination; as, the chimera of an author. --Burke.
      [1913 Webster]

WordNet (r) 3.0 (2006):

Chimera
    n 1: (Greek mythology) fire-breathing female monster with a
         lion's head and a goat's body and a serpent's tail;
         daughter of Typhon [syn: Chimera, Chimaera]
    2: a grotesque product of the imagination [syn: chimera,
       chimaera]

Moby Thesaurus II by Grady Ward, 1.0:

64 Moby Thesaurus words for "chimera":
   airy hope, airy nothing, apparition, autism, brainchild, bubble,
   daydream, deception, delirium, deluded belief, delusion, dereism,
   dream, dream vision, dreamland, dreamworld, eidolon, false belief,
   fancy, fantasque, fantasy, fiction, figment, golden dream,
   hallucination, idle fancy, ignis fatuus, illusion, imagery,
   imagination, imagining, insubstantial image, invention, maggot,
   make-believe, misbelief, misconception, mosaic, myth, phantasm,
   phantom, pipe, pipe dream, pomato, potomato, quixotic ideal,
   rainbow, romance, self-deceit, self-deception, self-delusion,
   sick fancy, thick-coming fancies, topato, trick, trip, unreal hope,
   utopia, vapor, vision, whim, whimsy, wildest dreams,
   wrong impression



The Free On-line Dictionary of Computing (30 December 2018):

Chimera

    A modular, X Window System-based
   web browser for Unix.  Chimera uses the
   Athena widget set so Motif is not needed.  It supports
   forms, inline images, TERM, SOCKS, proxy servers,
   Gopher, FTP, HTTP and local file accesses.  Chimera can
   be extended using external programs.  New protocols can
   easily be added and alternate image formats can be used for
   inline images (e.g. PostScript).

   Version 1.60 is available for
   (ftp://ftp.cs.unlv.edu/pub/chimera).

   (http://unlv.edu/chimera/).

   Chimera runs on Sun SPARC SunOS 4.1.x, IBM RS/6000
   AIX 3.2.5, Linux 1.1.x.  It should run on anything with
   X11R[3-6], imake and a C compiler.

   (1994-11-08)