a bacterial growth factor, CHONS, present in all living things; vitamin H: it is one of the vitamin B group and is found in liver, egg yolk, yeast, etc.
Origin of biotinbiot(ic) + -in
A vitamin, C10H16N2O3S, that is a component of the vitamin B complex and is a cofactor in many enzyme systems. It is found in large quantities in liver, egg yolk, milk, and yeast and is used in many biotechnology applications.
Origin of biotinGreek biōtos life ; see biotic . -in