sorbent

from WordNet (r) 3.0 (2006)

sorbent
    n 1: a material that sorbs another substance; i.e. that has the
         capacity or tendency to take it up by either absorption or
         adsorption [syn: {sorbent}, {sorbent material}]

from The Collaborative International Dictionary of English v.0.48

Sorbent \Sorb"ent\, n. [L. sorbens, p. pr. of sorbere to suck
   in, to absorb.]
   An absorbent. [R.]
   [1913 Webster]

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