Skin

Skin is the layer of usually soft, flexible outer tissue covering the body of a vertebrate animal, with three main functions: protection, regulation, and sensation.

thumb|right|Wrinkles on the face and hands are a typical sign of aging

260px|thumb|A dragonfly in its radical final moult, metamorphosing from an aquatic nymph to a winged adult. In biology, moulting (British English), or molting (American English), also known as sloughing, shedding, or in many invertebrates, ecdysis, is a process by which an animal casts off parts of its body to serve some beneficial purpose, either at specific times of the year, or at specific points in its life cycle.

Cellulite () or gynoid lipodystrophy (GLD) is the herniation of subcutaneous fat within fibrous connective tissue that manifests as skin dimpling and nodularity, often on the pelvic region (specifically the buttocks), lower limbs, and abdomen. Cellulite occurs in most postpubescent females. A review gives a prevalence of 85–98% of women of European descent, but it is considerably less common in women of East Asian descent. It is believed to be physiological rather than pathological. It can result from a complex combination of factors, including diet, sedentary lifestyle, hormonal balance, or h

skin of a pig

A birthmark is a congenital, benign irregularity on the skin which is present at birth or appears shortly after birth—usually in the first month. Birthmarks can occur anywhere on the skin. They are caused by overgrowth of blood vessels, melanocytes, smooth muscle, fat, fibroblasts, or keratinocytes.

Cracklings (American English), crackling (British English), also known as scratchings, are the solid material that remains after rendering animal fat and skin to produce lard, tallow, or schmaltz, or as the result of roasting meat. It is often eaten as a snack food or made into animal feed. It is also used in cooking.

thumb|225px|Michelangelo's The Last Judgment - [[St Bartholomew holding the knife of his martyrdom and his flayed skin; it is conjectured that Michelangelo included a self-portrait depicting himself as St Bartholomew after he had been flayed alive.]]

Xeroderma is a skin condition characterized by excessively dry skin. The synonyms xerosis and xerosis cutis are sometimes used in a medical context. Colloquially, xeroderma may be referred to as dry skin or as ashiness or ashy skin when present in dark skin. Xeroderma derives .

waxy or cheese-like white substance found coating the skin of newborn human babies

gas exchange across the skin of an organism

gelatin obtained from the skin of the donkey

callus on the forehead of some Muslims

community of microorganisms of the skin

medical condition

In biology, an integument is the tissue surrounding an organism's body or an organ within, such as skin, a husk, shell, germ or rind.

material to regenerate or replace skin

electronics mimicing skin functionalities

purported ability to "see" visuals via the skin

Gribenes or grieven (; ) is a dish consisting of crisp chicken or goose skin cracklings with fried onions.

grip of a flexible object

thumb|The shedded skin of an Indian rat snake Snakeskin may either refer to the skin of a live snake, the shed skin of a snake after molting, or to a type of leather that is made from the hide of a dead snake. Snakeskin and scales can have varying patterns and color formations, providing protection via camouflage from predators. The colors and iridescence in these scales are largely determined by the types and amount of chromatophores located in the dermis of the snake skin. The snake's skin and scales are also an important feature to their locomotion, providing protection and minimizing frict

Finger degloving and amputation|300px|thumb Degloving occurs when skin and the fat below it, the subcutaneous tissue, are torn away from the underlying anatomical structures they are normally attached to. It is a type of avulsion. Normally the subcutaneous tissue layer is attached to the fibrous layer that covers muscles known as deep fascia.

skin of any species of crocodile

Loricrin is a protein that in humans is encoded by the LOR gene.

In medicine, an intertriginous area is where two skin areas may touch or rub together. Examples of intertriginous areas are the axilla of the arm, the anogenital region, skin folds of the breasts and between digits. Intertriginous areas are known to harbor large amounts of aerobic cocci and aerobic coryneform bacteria, which are both parts of normal skin flora.