Exfoliation
Exfoliation can refer to:

Exfoliation (botany), the loss of leaves (or, in some cases, pieces of bark) from a plant
Exfoliation (cosmetology), a cosmetic technique that aims to remove dead skin from the body and face
Exfoliation (geology), a process resulting in parallel fractures in the surface of rock
Exfoliation corrosion (metallurgy), a severe type of intergranular corrosion
Exfoliation - Intercalation (chemistry), the complete separation of the layers of a material
Exfoliation syndrome, an eye disease

See also
Exfoliative dermatitis, sometimes known as erythroderma, a skin disease process involving redness and scaling of most or all of the sufferers skin, with various causes