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

deafen \deaf"en\, v. t. imp.  p. p. deafened; p. pr.  vb.
   n. deafening. from deaf.
   1. to make deaf; to deprive of the power of hearing; to
      render incapable of perceiving sounds distinctly.
      1913 webster

            deafened and stunned with their promiscuous cries.
                                                  --addison.
      1913 webster

   2. arch. to render impervious to sound, as a partition or
      floor, by filling the space within with mortar, by lining
      with paper, etc.
      1913 webster
see also:
deafened deafening deaf 

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

deafened \deafened\ adj.
   rendered deaf.
   wordnet 1.5

[3] : WordNet (r) 2.0

deafened
     adj : caused to hear poorly or not at all

Deafened >> D Words
Deafened, definition of term: Deafened
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