The Collaborative International Dictionary of English v.0.48:

paradox \par"a*dox\ (p[a^]r"[.a]*d[o^]ks), n.; pl. paradoxes
   (p[a^]r"[.a]*d[o^]ks*[e^]z). [F. paradoxe, L. paradoxum, fr.
   Gr. para`doxon; para` beside, beyond, contrary to + dokei^n
   to think, suppose, imagine. See Para-, and Dogma.]
   A tenet or proposition contrary to received opinion; an
   assertion or sentiment seemingly contradictory, or opposed to
   common sense; that which in appearance or terms is absurd,
   but yet may be true in fact.
   [1913 Webster]

         A gloss there is to color that paradox, and make it
         appear in show not to be altogether unreasonable.
                                                  --Hooker.
   [1913 Webster]

         This was sometime a paradox, but now the time gives it
         proof.                                   --Shak.
   [1913 Webster]

   Hydrostatic paradox. See under Hydrostatic.
      [1913 Webster]

WordNet (r) 3.0 (2006):

paradox
    n 1: (logic) a statement that contradicts itself; "`I always
         lie' is a paradox because if it is true it must be false"

The Free On-line Dictionary of Computing (19 January 2023):

Paradox

    A relational database for Microsoft Windows,
   originally from Borland.

   Paradox 5 ran on Microsoft Windows [version?] and provided a
   graphical environment, a debugger, a data modelling tool,
   and many "ObjectPAL" commands.

   Paradox 7 ran under Windows 95 and Windows NT.

   (http://corel.com/paradox9/index.htm).

   [Update?]

   (1996-05-27)


The Free On-line Dictionary of Computing (19 January 2023):

paradox

    An apparently sound argument leading to a
   contradiction.

   Some famous examples are Russell's paradox and the liar
   paradox.  Most paradoxes stem from some kind of
   self-reference.

   Smarandache Linguistic Paradox
   (http://gallup.unm.edu/~smarandache/Paradox.htm).

   (1999-11-05)