| keratic precipitates | Inflammatory cells on the corneal endothelium. Synonym: punctate keratitis, keratitis punctata. (05 Mar 2000) |
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| keratin | <protein> A protein that is a primary constituent of hair, nails and skin. (27 Sep 1997) |
| keratin filaments | A class of intermediate filament's that form a network within epithelial cells and anchor to desmosomes, thus imparting tensile strength to the tissue. Synonym: cytokeratin filaments. (05 Mar 2000) |
| keratin pearl | A focus of central keratinization within concentric layers of abnormal squamous cells; seen in squamous cell carcinoma. Synonym: epithelial nest, epithelial pearl, squamous pearl. (05 Mar 2000) |
| keratinases | Hydrolases catalyzing the hydrolysis of keratin; each having slightly different specificities. (05 Mar 2000) |
| keratinised | Having become horny. Synonym: cornified. (05 Mar 2000) |
| keratinised cell | The dead keratin-filled squamous cell of the stratum corneum. Synonym: horny cell, keratinised cell. Origin: cornea, L. Fem. Of corneus, horny, + G. Kytos, cell (05 Mar 2000) |
| keratinising epithelium | <cell biology> An epithelium such as vertebrate epidermis in which a keratin rich layer is formed from intracellular cytokeratins as the outermost cells die. (18 Nov 1997) |
| keratinization | Keratin formation or development of a horny layer; may also apply to premature formation of keratin. Synonym: cornification, hornification. (05 Mar 2000) |
| keratinocyte | <pathology> Skin cell, of the keratinised layer of epidermis: its characteristic intermediate filament protein is cytokeratin. (18 Nov 1997) |
| keratinocyte growth factor | <growth factor> A growth factor structurally related to fibroblast growth factor. (18 Nov 1997) |
| keratinocytes | Epidermal cells which synthesise keratin and undergo characteristic changes as they move upward from the basal layers of the epidermis to the cornified (horny) layer of the skin. Successive stages of differentiation of the keratinocytes forming the epidermal layers are basal cell, spinous or prickle cell, and the granular cell. (12 Dec 1998) |
| keratinophilic | Denoting fungi that use keratin as a substrata, e.g., dermatophytes. Origin: keratin + Gr. Philos, love, attraction, + -ic (05 Mar 2000) |
| keratinosome | A membrane-bound granule, 100 to 500 nm in diameter, located in the upper layers of the stratum spinosum of certain stratified squamous epithelia. Synonym: lamellar granule, membrane-coating granule, Odland body. (05 Mar 2000) |
| keratinous | 1. Relating to keratin. Synonym: horny. (05 Mar 2000) |