vedeliku, gaasi, heli või kiirguse neeldumine vedelikus või tahkes aines, the process of one material (absorbent) being retained by another (absorbate); this may be the physical solution of a gas, liquid, or solid in a liquid, attachment of molecules of a gas, vapour, liquid, or dissolved substance to a solid surface by physical forces, etc.

vedeliku, gaasi, heli või kiirguse neeldumine vedelikus või tahkes aines, the process of one material (absorbent) being retained by another (absorbate); this may be the physical solution of a gas, liquid, or solid in a liquid, attachment of molecules of a gas, vapour, liquid, or dissolved substance to a solid surface by physical forces, etc.