Swelling

Swelling may refer to:
 * Edema, a transient abnormal enlargement of a body part or area not caused by a tumor
 * Die swell, the increase in cross-sectional area of a polymer after it exits an extrusion die
 * Swelling capacity, the amount of liquid that can be absorbed by a polymer
 * Neutron-induced swelling, the increasing of volume and decreasing of density of materials subjected to intense neutron radiation
 * Swelling index