-ons

from The Collaborative International Dictionary of English v.0.48
Pleurosteon \Pleu*ros"te*on\, n.; pl. L. {Pleurostea}, E.
   {-ons}. [NL., fr. Gr. ? a rib + ? a bone.] (Anat.)
   The antero-lateral piece which articulates the sternum of
   birds.
   [1913 Webster]
    
from V.E.R.A. -- Virtual Entity of Relevant Acronyms (June 2006)
ONS
       Object Numbering System (EPC)
       
    

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