The Collaborative International Dictionary of English v.0.48:

Figurable \Fig`ur*a*ble\, a. [L. figurare to form, shape, fr.
   figura figure: cf. F. figurable. See Figure.]
   Capable of being brought to a fixed form or shape.
   [1913 Webster]

         Lead is figurable, but water is not.     --Johnson.
   [1913 Webster]