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

horror \hor"ror\, n. formerly written horrour. l. horror, fr.
   horrere to bristle, to shiver, to tremble with cold or dread,
   to be dreadful or terrible; cf. skr. h?sh to bristle.
   1. a bristling up; a rising into roughness; tumultuous
      movement. archaic
      1913 webster

            such fresh horror as you see driven through the
            wrinkled waves.                       --chapman.
      1913 webster

   2. a shaking, shivering, or shuddering, as in the cold fit
      which precedes a fever; in old medical writings, a chill
      of less severity than a rigor, and more marked than an
      algor.
      1913 webster

   3. a painful emotion of fear, dread, and abhorrence; a
      shuddering with terror and detestation; the feeling
      inspired by something frightful and shocking.
      1913 webster

            how could this, in the sight of heaven, without
            horrors of conscience be uttered?     --milton.
      1913 webster

   4. that which excites horror or dread, or is horrible; gloom;
      dreariness.
      1913 webster

            breathes a browner horror on the woods. --pope.
      1913 webster

   the horrors, delirium tremens. colloq.
      1913 webster
see also:
the horrors 

[2] : WordNet (r) 2.0

horror
     n 1: intense and profound fear
     2: something that inspires horror; something horrible; "the
        painting that others found so beautiful was a horror to
        him"
     3: intense aversion syn: repugnance, repulsion, revulsion
see also:
repugnance repulsion revulsion 

[3] : Moby Thesaurus II by Grady Ward, 1.0

107 moby thesaurus words for "horror":
   dracula, frankenstein, wolf-man, abhorrence, abject fear,
   abomination, affright, alarm, allergy, angst, animosity, animus,
   antagonism, antipasto, antipathy, anxiety, apprehension, aversion,
   awe, blue funk, bogey, bogeyman, bugaboo, bugbear, clawing,
   cold sweat, consternation, cowardice, creeping flesh, cruciation,
   crucifixion, detestation, disgust, dislike, dismay, distaste,
   distress, dread, enmity, execration, fear, fear and trembling,
   fee-faw-fum, fright, frightener, funk, ghost, ghoul, hate, hatred,
   hell, hell upon earth, hobgoblin, holocaust, holy terror,
   horrification, hostility, incubus, laceration, lancination,
   loathing, martyrdom, monster, mortal horror, nausea, nervousness,
   nightmare, odium, ogre, ogress, pain, panic, panic fear, passion,
   persecution, perturbation, phantom, phobia, purgatory, queasiness,
   rack, rancor, repugnance, repulsion, revenant, revulsion, scare,
   scarebabe, scarecrow, scarer, shock, shuddering, specter, stampede,
   succubus, terror, torment, torture, trepidation, trepidity,
   uneasiness, unholy dread, upset, vampire, werewolf, whet, wrench

Horror >> H Words
Horror, definition of term: Horror
horror_pag1.html

Crawling Horror >> C Words
Crawling Horror, definition of term: Crawling Horror
crawling+horror_pag1.html