Source : Webster's Revised Unabridged Dictionary (1913)

Catachresis \Cat`a*chre"sis\, n. [L. fr. Gr. ? misuse, fr. ? to
   misuse; kata` against + ? to use.] (Rhet.)
   A figure by which one word is wrongly put for another, or by
   which a word is wrested from its true signification; as, ``To
   take arms against a sea of troubles''. --Shak. ``Her voice
   was but the shadow of a sound.'' --Young.

Source : WordNet®

catachresis
     n : strained or paradoxical use of words either in error (as
         `blatant' to mean `flagrant') or deliberately (as in a
         mixed metaphor: `blind mouths')