keratin, ceratin
(noun) a fibrous scleroprotein that occurs in the outer layer of the skin and in horny tissues such as hair, feathers, nails, and hooves
Source: WordNet® 3.1
keratin (countable and uncountable, plural keratins)
(protein) The protein of which hair and nails are composed.
• Katrine, intaker, kreatin, tankier
Source: Wiktionary
Ker"a*tin, n. Etym: [Gr. (Physiol. Chem.)
Definition: 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 acid it yields leucin and tyrosin, as does albumin. Called also epidermose.
Source: Webster’s Unabridged Dictionary 1913 Edition
8 May 2025
(noun) the act of protecting something by surrounding it with material that reduces or prevents the transmission of sound or heat or electricity
The world’s most expensive coffee costs more than US$700 per kilogram. Asian palm civet – a cat-like creature in Indonesia, eats fruits, including select coffee cherries. It excretes partially digested seeds that produce a smooth, less acidic brew of coffee called kopi luwak.
