"adsorbent" in the noun sense
1. adsorbent, adsorbent material
a material having capacity or tendency to adsorb another substance
"adsorbent" in the adjective sense
1. adsorbent, adsorptive, surface-assimilative
having capacity or tendency to adsorb or cause to accumulate on a surface
Source: WordNet® (An amazing lexical database of English)
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