Ab*sorp"tion (#), n. [L. absorptio, fr. absorbere. See [Absorb].]

1.

The act or process of absorbing or sucking in anything, or of being absorbed and made to disappear; as, the absorption of bodies in a whirlpool, the absorption of a smaller tribe into a larger.

2. [Chemistry|Chem.] & Physics

An imbibing or reception by molecular or chemical action; as, the absorption of light, heat, electricity, etc.

3. [Physiology|Physiol.]

In living organisms, the process by which the materials of growth and nutrition are absorbed and conveyed to the tissues and organs.

4.

Entire engrossment or occupation of the mind; as, absorption in some employment.

© [Webster 1913].

absorption (definition)