\Ref"er*a*ble\ (r?f"?r*?*b'l), a.
Capable of being referred, or considered in relation to
something else; assignable; ascribable. [Written also
{referrible}.]

      It is a question among philosophers, whether all the
      attractions which obtain between bodies are referable
      to one general cause.                    --W.
                                               Nicholson.