[av-i-din, uh-vid-in] 
| a protein, found in the white of egg, that combines with and prevents the action of biotin, thus injuring the animal that consumes it in excess by producing biotin deficiency. |
| av·i·din (āv'ĭ-dĭn) n. A protein found in uncooked egg white that binds to and inactivates biotin. An abundance of avidin in the diet can result in a deficiency of biotin. [avid + (biot)in, from its affinity for biotin.] |
avidin av·i·din (āv'ĭ-dĭn)
n.
A protein, found in uncooked egg white, that binds to and inactivates biotin and which, when present in abundance, can result in a deficiency of biotin.
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