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keratin Definition

kera·tin (kerə tin)

noun

a tough, fibrous, insoluble protein forming the principal matter of hair, nails, horn, etc.

Etymology: kerat(o)- + -in

keratin Related Forms
ke·rati·nous (kə rat'n əs) adjective or ke·rati·noid′-o̵id′
keratin Usage Examples

Converse of object

  • call: Whilst still at the basal layer, they begin forming a protein called keratin.
  • contain: Human skin contains keratin which is a fibrous protein which is also the principal constituent of hair.
  • digest: Clothes moth larvae are among the few insects able to digest the keratin of hairs and feathers.

Modifies a noun

  • fiber: Extraction of DNA and analysis of raw fibers Various methods have been developed for the recovery of DNA from keratin fibers.
  • plug: They tend to have a volcano appearance with a keratin plug in the middle.
  • protein: This flat layer of cells owes its toughness to the keratin proteins which they contain in large quantities.
  • filament: They are irregularly shaped dendritic cells, without keratin filaments of melanosomes, and they are antigen presenting cells.
  • amino: Keratin amino acids, panthenol and mucopolysaccharides may assist with replacing and retaining moisture, leaving the hair with a healthy-looking shine.
  • cell: Occasionally the virus causes rapid growth of the tough keratin cells on the footpad, resulting in a hardened pad.

Noun used with modifier

  • protein: Some are used as building blocks: your hair and nails contain the protein keratin, while your muscles contain actin and myosin.

Browse dictionary entries near keratin

  1. keratectomy
  2. keramic
  3. ker-
  4. kept woman
  5. kept
  6. Kepone
  7. Kepler
  8. kepi
  9. Keos
  10. Keogh plan
  1. keratinize
  2. keratitis
  3. kerato-
  4. keratoconus
  5. keratogenous
  6. keratoid
  7. keratoplasty
  8. keratose
  9. keratosis
  10. keratotomy