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

shudder \shud"der\, n.
   the act of shuddering, as with fear. --shak.
   1913 webster

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

shudder \shud"der\, v. i. imp.  p. p. shuddered;p. pr.  vb.
   n. shuddering. oe. shoderen, schuderen; akin to lg.
   schuddern, d. schudden to shake, os. skuddian, g. schaudern
   to shudder, sch"utteln to shake, sch"utten to pour, to
   shed, ohg. scutten, scuten, to shake.
   to tremble or shake with fear, horrer, or aversion; to shiver
   with cold; to quake. "with shuddering horror pale." --milton.
   1913 webster

         the shuddering tennant of the frigid zone. --goldsmith.
   1913 webster
see also:
shuddered shuddering 

[3] : WordNet (r) 2.0

shudder
     n 1: an almost pleasurable sensation of fright; "a frisson of
          surprise shot through him" syn: frisson, shiver, chill,
           quiver, thrill, tingle
     2: an involuntary vibration as if from illness or fear syn:
        tremor
     v 1: shake, as from cold; "the children are shivering--turn on
          the heat" syn: shiver
     2: tremble convulsively, as from fear or excitement syn: shiver,
         throb, thrill
see also:
frisson shiver chill quiver thrill tingle 
tremor throb 

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

96 moby thesaurus words for "shudder":
   bang, be cold, bob, bobble, boot, bounce, bump, charge, chatter,
   chill, convulse, convulsion, didder, disquiet, disquietude, dither,
   dithers, falter, fidgetiness, fidgets, flush, flutter, freeze,
   freeze to death, grimace, grow cold, gyrate, have a chill,
   have an ague, have goose pimples, heaving, horripilate, hustle,
   inquietude, jactitate, jar, jerk, jig, jigget, jiggle, jog, joggle,
   jollies, jolt, jostle, jounce, jump, kick, lift, lose heat,
   palpitation, panting, paroxysm, perish with cold, pitapat,
   pitter-patter, quake, quaking, quaver, quavering, quiver,
   quivering, rattle, restlessness, rictus, rush, rush of emotion,
   sensation, shake, shakes, shaking, shimmy, shiver, shivers, shock,
   spasm, surge of emotion, thrill, throb, throbbing, tic, tingle,
   tingling, titillation, tremble, trembling, tremor,
   tremor of excitement, trepidation, trepidity, twitch, twitter,
   unrest, vibrate, vibration, wobble

Shudder >> S Words
Shudder, definition of term: Shudder
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