Meanings
Synonyms & antonyms
nouna fibrous scleroprotein that occurs in the outer layer of the skin and in horny tissues such as hair, feathers, nails, and hooves
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Also see
Synonym sets from Open English WordNet, CC BY 4.0.
Origin
- Ancient Greekκέρας“horn”
- GermanKeratin
- Englishkeratin
Borrowed from German Keratin, from Ancient Greek κέρας (kéras, “horn”) + -in. Doublet of carat.
More words from German, Ancient Greek
Full word history & related roots →Translations
Arabic كيراتين
- كيراتينprotein that hair and nails are made of
Bulgarian кератин
- кератин (keratin)protein that hair and nails are made of
Catalan queratina
- queratinaprotein that hair and nails are made of
Chinese Cantonese 角質 /角质
- 角質 /角质 (gok³ zat¹)protein that hair and nails are made of
Chinese Mandarin 角質 /角质, 角蛋白
- 角質 /角质 (jiǎozhì)protein that hair and nails are made of
- 角蛋白 (jiǎodànbái)protein that hair and nails are made of
- 角朊 (jiǎoruǎn)protein that hair and nails are made of
Czech keratin, rohovina
- keratinprotein that hair and nails are made of
- rohovinaprotein that hair and nails are made of
Danish keratin
- keratinprotein that hair and nails are made of
Dutch keratine
- keratineprotein that hair and nails are made of
Esperanto kerato
- keratoprotein that hair and nails are made of
Finnish keratiini
- keratiiniprotein that hair and nails are made of
French kératine
- kératineprotein that hair and nails are made of
German Keratin, Hornstoff
- Keratinprotein that hair and nails are made of
- Hornstoffprotein that hair and nails are made of
- Hornsubstanzprotein that hair and nails are made of
Icelandic hyrni, hornefni
- hyrniprotein that hair and nails are made of
- hornefniprotein that hair and nails are made of
- keratínprotein that hair and nails are made of
Irish ceiritin
- ceiritinprotein that hair and nails are made of
Italian cheratina
- cheratinaprotein that hair and nails are made of
Japanese ケラチン
- ケラチン (kerachin)protein that hair and nails are made of
Māori keratini
- keratiniprotein that hair and nails are made of
Norwegian Bokmål keratin
- keratinprotein that hair and nails are made of
Persian کراتین
- کراتین (kerâtin)protein that hair and nails are made of
Polish keratyna
- keratynaprotein that hair and nails are made of
Portuguese queratina
- queratinaprotein that hair and nails are made of
Romanian cheratină
- cheratinăprotein that hair and nails are made of
Russian керати́н, рогово́е вещество́
- керати́н (keratín)protein that hair and nails are made of
- рогово́е вещество́ (rogovóje veščestvó)protein that hair and nails are made of
Spanish queratina
- queratinaprotein that hair and nails are made of
Swahili keratini
- keratiniprotein that hair and nails are made of
Swedish keratin, hornämne
- keratinprotein that hair and nails are made of
- hornämneprotein that hair and nails are made of
Turkish keratin
- keratinprotein that hair and nails are made of
Welsh ceratin
- ceratinprotein that hair and nails are made of
Rhymes & wordplay
Anagrams
Cite this entry
APA
keratin. (n.d.). In WatkinsX Dictionary. Retrieved November 2, 2026, from https://dictionary.watkinsx.com/word/keratin
MLA
“keratin.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/keratin. Accessed November 2, 2026.
Chicago
WatkinsX Dictionary, s.v. “keratin,” accessed November 2, 2026, https://dictionary.watkinsx.com/word/keratin.
Source: keratin on Wiktionary, CC BY-SA 4.0.