The Collaborative International Dictionary of English v.0.48:

Fugue \Fugue\, n. [F., fr. It. fuga, fr. L. fuga a fleeing,
   flight, akin to fugere to fiee. See Fugitive.] (Mus.)
   A polyphonic composition, developed from a given theme or
   themes, according to strict contrapuntal rules. The theme is
   first given out by one voice or part, and then, while that
   pursues its way, it is repeated by another at the interval of
   a fifth or fourth, and so on, until all the parts have
   answered one by one, continuing their several melodies and
   interweaving them in one complex progressive whole, in which
   the theme is often lost and reappears.
   [1913 Webster]

         All parts of the scheme are eternally chasing each
         other, like the parts of a fugue.        --Jer. Taylor.
   [1913 Webster]

WordNet (r) 3.0 (2006):

fugue
    n 1: dissociative disorder in which a person forgets who they
         are and leaves home to creates a new life; during the fugue
         there is no memory of the former life; after recovering
         there is no memory for events during the dissociative state
         [syn: fugue, psychogenic fugue]
    2: a dreamlike state of altered consciousness that may last for
       hours or days
    3: a musical form consisting of a theme repeated a fifth above
       or a fourth below its first statement

Moby Thesaurus II by Grady Ward, 1.0:

28 Moby Thesaurus words for "fugue":
   agnosia, amnesia, blackout, canon, catalepsy, cataplexy,
   catatonic stupor, catch, daydreaming, daze, dream state, fugato,
   fugue state, hypnotic trance, loss of memory, reverie, rondeau,
   rondino, rondo, rondoletto, round, roundelay, sleepwalking,
   somnambulism, stupor, trance, troll, word deafness



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

Fugue

    A music language implemented in Xlisp.

   ["Fugue: A Functional Language for Sound Synthesis",
   R.B. Dannenberg et al, Computer 24(7):36-41 (Jul 1991)].

   (1994-12-01)