Water-absorbent

The technical term for this is hydrophilic (ancient Greek: hýdor “water”, phílos “loving”). Hydrophilic surfaces absorb water and can thus be wetted with water.

Water-repellent

The technical term for this is hydrophobic (ancient Greek: hýdor “water”, phóbos “fear”). Water rolls off hydrophobic materials without moistening them.

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