Source : Webster's Revised Unabridged Dictionary (1913)

Absorbable \Ab*sorb"a*ble\, a. [Cf. F. absorbable.]
   Capable of being absorbed or swallowed up. --Kerr.

Source : WordNet®

absorbable
     adj : capable of being absorbed or taken in through the pores of a
           surface [ant: {adsorbable}]