"absorbent" in the noun sense
1. absorbent material, absorbent
a material having capacity or tendency to absorb another substance
"absorbent" in the adjective sense
1. absorbent, absorptive
having power or capacity or tendency to absorb or soak up something (liquids or energy etc.
"as absorbent as a sponge"
Source: WordNet® (An amazing lexical database of English)
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