Source : Webster's Revised Unabridged Dictionary (1913)

Concealed \Con*cealed"\, a.
   Hidden; kept from sight; secreted. -- {Con*ceal"ed*ly}, adv.
   -- {Con*ceal"ed*ness}, n.

   {Concealed weapons} (Law), dangerous weapons so carried on
      the person as to be knowingly or willfully concealed from
      sight, -- a practice forbidden by statute.