The Collaborative International Dictionary of English v.0.48:

Vendible \Vend"i*ble\, a. [L. vendibilis: cf. OF. vendible, F.
   vendable.]
   Capable of being vended, or sold; that may be sold; salable.
   [1913 Webster]

         The regulating of prices of things vendible. --Bacon.
   [1913 Webster]

   Note: Vendible differs from marketable; the latter signifies
         proper or fit for market, according to the laws or
         customs of a place. Vendible has no reference to such
         legal fitness.
         [1913 Webster]

The Collaborative International Dictionary of English v.0.48:

Vendible \Vend"i*ble\, n.
   Something to be sold, or offered for sale. --
   Vend"i*ble*ness, n. -- Vend"i*bly, adv.
   [1913 Webster]

WordNet (r) 3.0 (2006):

vendible
    adj 1: fit to be offered for sale; "marketable produce" [syn:
           marketable, merchantable, sellable, vendable,
           vendible]