The Collaborative International Dictionary of English v.0.48:

desoxyribonucleic acid \desoxyribonucleic acid\ n.
   same as deoxyribonucleic acid.
   [PJC]

WordNet (r) 3.0 (2006):

desoxyribonucleic acid
    n 1: (biochemistry) a long linear polymer found in the nucleus
         of a cell and formed from nucleotides and shaped like a
         double helix; associated with the transmission of genetic
         information; "DNA is the king of molecules" [syn:
         deoxyribonucleic acid, desoxyribonucleic acid, DNA]