Keratin

Keratin (ən) is a family of fibrous structural proteins. Keratin is the key structural material making up the outer layer of human skin. It is also the key structural component of hair and nails. Keratin monomers assemble into bundles to form intermediate filaments, which are tough and insoluble and form strong unmineralized tissues found in rept...
Found on http://en.wikipedia.org/wiki/Keratin

Keratin

- a fibrous polymer which is notas strong as collagen but less soluble. It forms the strong and water-resistant properties of skin, nails, hair, horn and beaks.
Found on http://www.eclipse.co.uk/moordent/page5.html

keratin

(ker´ә-tin) any of a family of scleroproteins that are principal constituents of epidermis, hair, nails, horny tissues, and the organic matrix of tooth enamel. Because it is insoluble in gastric juice, keratin is sometimes used to coat pills that are meant to pass through the stomach unchanged.
Found on http://www.encyclo.co.uk/local/21001

keratin

(ker;ua-tin) An insoluble protein present in the epidermis and in epidermal derivatives, such as hair and nails.
Found on http://www.mhhe.com/biosci/abio/glossary.mhtml

keratin

[n] - a fibrous scleroprotein that occurs in the outer layer of the skin and in horny tissues such as hair feathers nails and hooves
Found on http://www.webdictionary.co.uk/definition.php?query=keratin

Keratin

• (n.) A nitrogenous substance, or mixture of substances, containing sulphur in a loose state of combination, and forming the chemical basis of epidermal tissues, such as horn, hair, feathers, and the like. It is an insoluble substance, and, unlike elastin, is not dissolved even by gastric or pancreatic juice. By decomposition with sulphuric a...
Found on http://thinkexist.com/dictionary/meaning/keratin/

keratin

<protein> A protein that is a primary constituent of hair, nails and skin. ... (27 Sep 1997) ...
Found on http://www.encyclo.co.uk/local/20973

Keratin

Ker'a·tin noun [ Greek ke`ras , -atos , horn.] (Physiol. Chem.) A nitrogenous substance, or mixture of substances, containing sulphur in a loose state of combination, and forming the chemical basis of epidermal tissues, such as horn, hair, feathers, and the like. It is an in...
Found on http://www.encyclo.co.uk/webster/K/5

keratin

A cystine rich protein produced by the epithelial cells.
Found on http://www.vetmed.wsu.edu/glossary/glossary.asp

Keratin

a fibrous polymer which is notas strong as collagen but less soluble. It forms the strong and water-resistant properties of skin, nails, hair, horn and beaks.
Found on http://www.encyclo.co.uk/local/20169

Keratin

A fibrous protein found in hair, nails and skin.
Found on https://www.goodsalonguide.com/community/hair-and-beauty-glossary

Keratin

A fibrous protein that fills mature keratinocytes near the skins surface.
Found on http://www.superglossary.com/Glossary/Science/Biology/

Keratin

a hard, tough, non-soluble protein
Found on http://imnh.isu.edu/digitalatlas/bio/glsry.htm

keratin

a protein material of which the covering of horns is composed.
Found on http://www.encyclo.co.uk/local/22035

keratin

A protein present in all cuticular structures of the body, such as hair, epidermis and horns.
Found on http://www.ada.org/glossaryforprofessionals.aspx

Keratin

A protein present in the organic matrix of the enamel of teeth.
Found on http://www.dentistryforomaha.com/patient-info/dental-glossary/

Keratin

A protein that hair, nails, skin, and horns are made of.
Found on http://www.encyclo.co.uk/local/22217

Keratin

A sulfur-containing protein that makes up hard tissues such as nails, horns and the outermost cells of skin.
Found on https://www.marinemammalobservertraining.com/help/glossary/

Keratin

A tough fibrous protein which is the key structural element in the outer layer of skin, hair and nails.
Found on http://hair-and-makeup-artist.com/makeup-glossary/

Keratin

a tough protein found in skin, nails, and hair
Found on http://www.medichecks.com/glossary.cfm?ltr=K

Keratin

A tough protein that is the primary constituent of hair, nails and skin.
Found on http://www.encyclo.co.uk/local/21512

Keratin

A tough, fibrous, insoluble protein forming hair and finger nails.
Found on http://www.americanhairloss.org/hair_loss_glossary/

Keratin

A tough, fibrous, insoluble protein forming hair and finger nails.
Found on http://www.webmd.com/skin-problems-and-treatments/hair-loss/hair-loss-gloss

keratin

An insoluble, sulfur-containing fibrous protein that serves as the main structural molecule in hair and nails and is also present in the skin. Keratin is synthesized by cells known as keratinocytes and may be hard or soft. Hard keratin is found in hair and nails; soft keratin is found in the epiderm...
Found on http://www.daviddarling.info/encyclopedia/K/keratin.html

KERATIN

An insoluble, sulfur-rich protein that represents the principal component of skin, hair, and nails (hooves).
Found on http://www.thehorse.com/Glossary.xhtml?L=K
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