Source : Webster's Revised Unabridged Dictionary (1913)

Attractable \At*tract"a*ble\, a.
   Capable of being attracted; subject to attraction. --
   {At*tract"a*ble*ness}, n.

Source : WordNet®

attractable
     adj : capable of being magnetized or attracted by a magnet; "the
           magnetic chips of steel produced by a cutting tool are
           attractable by a magnet"