The Collaborative International Dictionary of English v.0.48:

Gnome \Gnome\, n. [F. gnome, prob. fr. Gr. gnw`mon one that
   knows, a guardian, i. e., of the treasures in the inner parts
   of the earth, or fr. ? intelligence, both fr. gnw^nai,
   gignw^skein, to know. See Know.]
   1. An imaginary being, supposed by the Rosicrucians to
      inhabit the inner parts of the earth, and to be the
      guardian of mines, quarries, etc.
      [1913 Webster]

   2. A dwarf; a goblin; a person of small stature or misshapen
      features, or of strange appearance.
      [1913 Webster]

   3. (Zool.) A small owl (Glaucidium gnoma) of the Western
      United States.
      [1913 Webster]

   4. [Gr. ?.] A brief reflection or maxim. --Peacham. Gnomic

WordNet (r) 3.0 (2006):

gnome
    n 1: a legendary creature resembling a tiny old man; lives in
         the depths of the earth and guards buried treasure [syn:
         gnome, dwarf]
    2: a short pithy saying expressing a general truth

Moby Thesaurus II by Grady Ward, 1.0:

93 Moby Thesaurus words for "gnome":
   Ariel, Befind, Corrigan, Finnbeara, Lilliputian, Mab, Oberon,
   Titania, Tom Thumb, adage, ana, analects, aphorism, apothegm,
   axiom, banshee, brocard, brownie, byword, catchword, cluricaune,
   collected sayings, current saying, dictate, dictum, distich, dwarf,
   elemental, elemental spirit, elf, epigram, expression, fairy,
   fairy queen, fay, goblin, golden saying, gremlin, hob, homunculus,
   imp, kobold, leprechaun, manikin, maxim, midge, midget, moral, mot,
   motto, oracle, ouphe, peewee, peri, phrase, pip-squeak,
   pithy saying, pixie, pooka, precept, prescript, proverb,
   proverbial saying, proverbs, puca, pwca, pygmy, rule, runt,
   salamander, saw, saying, sentence, sententious expression, shrimp,
   sloka, sprite, stock saying, sutra, sylph, sylphid, teaching, text,
   truism, undine, verse, wart, wisdom, wisdom literature,
   wise saying, witticism, word, words of wisdom



V.E.R.A. -- Virtual Entity of Relevant Acronyms (February 2016):

GNOME
       GNU Network Object Model Environment (GNU, GNOME, GUI)


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

GNU Network Object Model Environment
GNOME

    (GNOME) A project to build a complete,
   user-friendly desktop based entirely on free software.
   GNOME is part of the GNU project and part of the
   OpenSource movement.  The desktop will consist of small
   utilities and larger applications which share a consistent
   look and feel.  GNOME uses GTK+ as the GUI toolkit for
   applications.

   GNOME is intended to run on any modern and functional
   Unix-like system.  The current version runs on Linux,
   FreeBSD, IRIX and Solaris.

   (http://gnome.org/).

   (1998-10-17)


The Devil's Dictionary (1881-1906):

GNOME, n.  In North-European mythology, a dwarfish imp inhabiting the
interior parts of the earth and having special custody of mineral
treasures.  Bjorsen, who died in 1765, says gnomes were common enough
in the southern parts of Sweden in his boyhood, and he frequently saw
them scampering on the hills in the evening twilight.  Ludwig
Binkerhoof saw three as recently as 1792, in the Black Forest, and
Sneddeker avers that in 1803 they drove a party of miners out of a
Silesian mine.  Basing our computations upon data supplied by these
statements, we find that the gnomes were probably extinct as early as
1764.