- The entrance of water into the soil or rocks by all natural process.
- The uptake of water or dissolved chemicals by a cell or an organism.
- More generally, the process by which substances in gaseous, liquid, or solid form dissolve or mix with other substances. Not to be confused with Adsorption.
Important Notice: Limited Web Access Dec 16 to 18, 2016
AIChE will undertake a routine upgrade of our digital infrastructure over the weekend of December 16-18, 2016. During this period access to certain areas of the website will be limited. Additional information will be forthcoming shortly.