1. The taking in, incorporation, or reception of gases, liquids, light, or heat. Cf. adsorption.
2. In radiology, the uptake of energy from radiation by the tissue or medium through which it passes. See: half-value layer.
3. In radiation or medical physics, the number of disintegrations per second of a radionuclide. Radioactivity. Unit (SI): becquerel.
Origin
[L. absorptio, fr. absorbeo, to swallow]
cutaneous absorption
disjunctive absorption
electron resonance absorption
external absorption
interstitial absorption
parenteral absorption
pathologic absorption
percutaneous absorption
photoelectric absorption