biotin

[bahy-uh-tin]

noun Biochemistry.

a crystalline, water-soluble vitamin, C10H16O3N2S, of the vitamin B complex, that is present in all living cells and functions as a growth factor and as a catalyst in carboxylation reactions.

Nearby words

  1. bioterrorism,
  2. biotherapy,
  3. biotic,
  4. biotic factor,
  5. biotic potential,
  6. biotinide,
  7. biotite,
  8. biotope,
  9. biotoxicology,
  10. biotoxin

Origin of biotin

1935–40; < German Biotin < Greek biotḗ life + -in -in2

Also called vitamin H.

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019


British Dictionary definitions for biotin

biotin

noun

a vitamin of the B complex, abundant in egg yolk and liver, deficiency of which causes dermatitis and loss of hair. Formula: C 10 H 16 N 2 O 3 SSee also avidin

Word Origin for biotin

C20: biot- from Greek biotē life, way of life + -in

Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Word Origin and History for biotin

biotin

n.

vitamin of the B group (also sometimes called vitamin H) essential for the growth of yeast, 1936, from German Biotin (1936), from Greek biotos "life" (see bio-) + chemical suffix -in (2).

Online Etymology Dictionary, © 2010 Douglas Harper

Medicine definitions for biotin

biotin

[bīə-tĭn]

n.

A colorless crystalline vitamin of the vitamin B complex, essential for the activity of many enzyme systems and found in large quantities in liver, egg yolk, milk, and yeast.

The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.

Science definitions for biotin

biotin

[bīə-tĭn]

A water-soluble organic acid belonging to the vitamin B complex that is important in the metabolism of carbohydrates and fatty acids. It is also a cofactor for some coenzymes that catalyze the synthesis of organic acids in the body. Biotin is found in liver, egg yolks, milk, yeast, and some vegetables. Chemical formula: C10H16N2O3S.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.