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biotin

bi·o·tin [ b ətin ]


noun 
Definition:
 
vitamin B component: a B complex vitamin found in egg yolk and liver, used in fat metabolism. Deficiency can lead to dermatitis, loss of appetite, hair loss, and anemia. C10H16N2O3S

[Mid-20th century. < Greek biotos "life, sustenance" < bios "life"]
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